#687EE3
Closest named color: Soft Blue (#6488EA). oklch(62.4% 0.154 272), rgb(104, 126, 227).
Aa
Black text reads best on this color (5.68:1).
About this color
#687EE3 is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.154 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.026 away. Black text reads best on it, at 5.68:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.154) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #687EE3 |
| RGB | rgb(104, 126, 227) |
| HSL | hsl(229, 69%, 65%) |
| OKLCH | oklch(62.4% 0.154 272) |
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 #687EE3 | 3.69:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #687EE3 | 5.68:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #687EE3 text on white | 3.69:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #687EE3 text on black | 5.68:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AFBEF2
oklch(80.8% 0.076 272.1)
-
Step 400
400
#869BEC
oklch(70.7% 0.121 271.9)
-
Step 500
500 (this color)
#687EE3
oklch(62.4% 0.154 272)
-
Step 600
600
#5367D3
oklch(55.5% 0.167 272)
-
Step 700
700
#4455B7
oklch(49.1% 0.155 272)
-
Step 800
800
#384694
oklch(42.7% 0.128 272.2)
-
Step 900
900
#303C76
oklch(37.8% 0.1 272)
-
Step 950
950
#1C2345
oklch(26.9% 0.064 272.7)
#687EE3 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) | #518AE7 | 0.036 |
| Deuteranopia (no green cones) | #4280E1 | 0.040 |
| Tritanopia (no blue cones) | #2794A5 | 0.137 |
| Achromatopsia (no color) | #858585 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #687EE3
#687EE3
oklch(62.4% 0.154 272)
- #A38400
#A38400
oklch(62.4% 0.128 92.2)
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 #687EE3, closest first.
No curated palette has a color within ΔE 0.04 of #687EE3.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.026
- Cornflower #6A79F7 ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.050
- Cornflower Blue #6495ED ΔE 0.059
- Medium Slate Blue #7B68EE ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.062
- Lavender Blue #8B88F8 ΔE 0.063
- Medium Purple #9370DB ΔE 0.067
Use #687EE3 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.