#687DFF
Closest named color: Cornflower (#6A79F7). oklch(64% 0.193 272.9), rgb(104, 125, 255).
Aa
Black text reads best on this color (5.96:1).
About this color
#687DFF is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.193 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 5.96:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.193) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.96:1 |
| White text | 3.51:1 |
Values
| HEX | #687DFF |
| RGB | rgb(104, 125, 255) |
| HSL | hsl(232, 100%, 70%) |
| OKLCH | oklch(64% 0.193 272.9) |
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 #687DFF | 3.51:1 | AA large text | Lc -67.9 | Content text, not long reading |
| Black text on #687DFF | 5.96:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #687DFF text on white | 3.51:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #687DFF text on black | 5.96:1 | AA | Lc -39.2 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FD
oklch(88.6% 0.052 272.2)
-
Step 300
300
#ACBDFE
oklch(80.9% 0.094 272.8)
-
Step 400
400
#8298FE
oklch(70.7% 0.151 272.8)
-
Step 500
500 (this color)
#687DFF
oklch(64% 0.193 272.9)
-
Step 600
600
#505FEB
oklch(55.7% 0.209 272.9)
-
Step 700
700
#414DCC
oklch(49.1% 0.194 272.8)
-
Step 800
800
#3540A5
oklch(42.6% 0.161 272.8)
-
Step 900
900
#2D3883
oklch(37.7% 0.126 272.6)
-
Step 950
950
#1A214D
oklch(26.9% 0.081 272.9)
#687DFF 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) | #328FFF | 0.059 |
| Deuteranopia (no green cones) | #0082FC | 0.066 |
| Tritanopia (no blue cones) | #009BB2 | 0.167 |
| Achromatopsia (no color) | #898989 | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #687DFF
#687DFF
oklch(64% 0.193 272.9)
- #A88900
#A88900
oklch(64% 0.131 92.8)
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 #687DFF, closest first.
No curated palette has a color within ΔE 0.04 of #687DFF.
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 0.045
- Periwinkle #8E82FE ΔE 0.054
- Medium Slate Blue #7B68EE ΔE 0.056
- Lavender Blue #8B88F8 ΔE 0.058
- Clear Blue #247AFD ΔE 0.061
- Dodger Blue #1E90FF ΔE 0.066
- Cornflower Blue #6495ED ΔE 0.070
Use #687DFF 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.