#687AFF
Closest named color: Cornflower (#6A79F7). oklch(63.4% 0.197 273.6), rgb(104, 122, 255).
Aa
Black text reads best on this color (5.81:1).
About this color
#687AFF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.197 and its hue 274°. 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 5.81:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.197) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.81:1 |
| White text | 3.61:1 |
Values
| HEX | #687AFF |
| RGB | rgb(104, 122, 255) |
| HSL | hsl(233, 100%, 70%) |
| OKLCH | oklch(63.4% 0.197 273.6) |
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 #687AFF | 3.61:1 | AA large text | Lc -68.8 | Content text, not long reading |
| Black text on #687AFF | 5.81:1 | AA | Lc 40.7 | Non-text elements, placeholder text |
| #687AFF text on white | 3.61:1 | AA large text | Lc 63.4 | Content text, not long reading |
| #687AFF text on black | 5.81:1 | AA | Lc -38.3 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E4E9FD
oklch(93.6% 0.028 274.7)
-
Step 200
200
#CDD7FD
oklch(88.4% 0.054 273.7)
-
Step 300
300
#ADBDFF
oklch(81% 0.095 273.6)
-
Step 400
400
#8397FF
oklch(70.7% 0.153 273.6)
-
Step 500
500 (this color)
#687AFF
oklch(63.4% 0.197 273.6)
-
Step 600
600
#525DED
oklch(55.6% 0.214 273.8)
-
Step 700
700
#434BCE
oklch(49% 0.199 273.7)
-
Step 800
800
#373FA7
oklch(42.8% 0.165 273.7)
-
Step 900
900
#2E3784
oklch(37.7% 0.128 273.5)
-
Step 950
950
#1B214D
oklch(27% 0.081 273.9)
#687AFF 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) | #288DFF | 0.064 |
| Deuteranopia (no green cones) | #0080FC | 0.067 |
| Tritanopia (no blue cones) | #0099B1 | 0.170 |
| Achromatopsia (no color) | #878787 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #687AFF
#687AFF
oklch(63.4% 0.197 273.6)
- #A58800
#A58800
oklch(63.5% 0.13 93.8)
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 #687AFF, closest first.
No curated palette has a color within ΔE 0.04 of #687AFF.
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 0.050
- Medium Slate Blue #7B68EE ΔE 0.050
- Periwinkle #8E82FE ΔE 0.058
- Clear Blue #247AFD ΔE 0.060
- Lavender Blue #8B88F8 ΔE 0.063
- Dodger Blue #1E90FF ΔE 0.071
- Dark Sky Blue #448EE4 ΔE 0.076
Use #687AFF 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.