#687BEF
Closest named color: Cornflower (#6A79F7). oklch(62.6% 0.174 273.3), rgb(104, 123, 239).
Aa
Black text reads best on this color (5.66:1).
About this color
#687BEF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.174 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.014 away. Black text reads best on it, at 5.66:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.174) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.66:1 |
| White text | 3.70:1 |
Values
| HEX | #687BEF |
| RGB | rgb(104, 123, 239) |
| HSL | hsl(232, 81%, 67%) |
| OKLCH | oklch(62.6% 0.174 273.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #687BEF | 3.70:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #687BEF | 5.66:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #687BEF text on white | 3.70:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #687BEF text on black | 5.66:1 | AA | Lc -37.3 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CFD8F9
oklch(88.6% 0.047 273.4)
-
Step 300
300
#AEBDF8
oklch(80.8% 0.085 273.3)
-
Step 400
400
#8699F5
oklch(70.7% 0.136 273.6)
-
Step 500
500 (this color)
#687BEF
oklch(62.6% 0.174 273.3)
-
Step 600
600
#5363DF
oklch(55.6% 0.188 273.1)
-
Step 700
700
#4451C2
oklch(49.1% 0.175 273.1)
-
Step 800
800
#38439D
oklch(42.7% 0.145 273.3)
-
Step 900
900
#303A7D
oklch(37.9% 0.113 273.4)
-
Step 950
950
#1C2249
oklch(27% 0.072 274)
#687BEF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #418BF3 | 0.050 |
| Deuteranopia (no green cones) | #2B7FED | 0.055 |
| Tritanopia (no blue cones) | #0E95AA | 0.154 |
| Achromatopsia (no color) | #858585 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #687BEF
#687BEF
oklch(62.6% 0.174 273.3)
- #A28500
#A28500
oklch(62.6% 0.128 93.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #687BEF, closest first.
No curated palette has a color within ΔE 0.04 of #687BEF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.014
- Soft Blue #6488EA ΔE 0.035
- Medium Slate Blue #7B68EE ΔE 0.049
- Periwinkle #8E82FE ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.061
- Lavender Blue #8B88F8 ΔE 0.061
- Clear Blue #247AFD ΔE 0.063
- Cornflower Blue #6495ED ΔE 0.067
Use #687BEF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.