#687EF7
Closest named color: Cornflower (#6A79F7). oklch(63.7% 0.181 272.5), rgb(104, 126, 247).
Aa
Black text reads best on this color (5.91:1).
About this color
#687EF7 is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.181 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.012 away. Black text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.91:1 |
| White text | 3.54:1 |
Values
| HEX | #687EF7 |
| RGB | rgb(104, 126, 247) |
| HSL | hsl(231, 90%, 69%) |
| OKLCH | oklch(63.7% 0.181 272.5) |
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 #687EF7 | 3.54:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #687EF7 | 5.91:1 | AA | Lc 41.3 | Non-text elements, placeholder text |
| #687EF7 text on white | 3.54:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #687EF7 text on black | 5.91:1 | AA | Lc -38.9 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E4E9FC
oklch(93.6% 0.026 274.1)
-
Step 200
200
#CED8FB
oklch(88.6% 0.049 272.8)
-
Step 300
300
#ADBDFA
oklch(80.8% 0.088 272.9)
-
Step 400
400
#8399F8
oklch(70.7% 0.141 272.5)
-
Step 500
500 (this color)
#687EF7
oklch(63.7% 0.181 272.5)
-
Step 600
600
#5062E4
oklch(55.7% 0.197 272.4)
-
Step 700
700
#4250C6
oklch(49.2% 0.182 272.6)
-
Step 800
800
#3642A0
oklch(42.7% 0.152 272.7)
-
Step 900
900
#2E397F
oklch(37.7% 0.118 272.7)
-
Step 950
950
#1B224A
oklch(27% 0.074 273)
#687EF7 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) | #3F8EFB | 0.050 |
| Deuteranopia (no green cones) | #2582F4 | 0.057 |
| Tritanopia (no blue cones) | #0099AF | 0.158 |
| Achromatopsia (no color) | #888888 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #687EF7
#687EF7
oklch(63.7% 0.181 272.5)
- #A78800
#A78800
oklch(63.7% 0.13 92.6)
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 #687EF7, closest first.
No curated palette has a color within ΔE 0.04 of #687EF7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.012
- Soft Blue #6488EA ΔE 0.034
- Periwinkle #8E82FE ΔE 0.055
- Medium Slate Blue #7B68EE ΔE 0.055
- Lavender Blue #8B88F8 ΔE 0.056
- Dark Sky Blue #448EE4 ΔE 0.062
- Clear Blue #247AFD ΔE 0.062
- Cornflower Blue #6495ED ΔE 0.063
Use #687EF7 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.