#6C91FB
Closest named color: Cornflower Blue (#6495ED). oklch(67.9% 0.162 267.5), rgb(108, 145, 251).
Aa
Black text reads best on this color (7.08:1).
About this color
#6C91FB is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.162 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.027 away. Black text reads best on it, at 7.08:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.162) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.08:1 |
| White text | 2.96:1 |
Values
| HEX | #6C91FB |
| RGB | rgb(108, 145, 251) |
| HSL | hsl(224, 95%, 70%) |
| OKLCH | oklch(67.9% 0.162 267.5) |
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 #6C91FB | 2.96:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #6C91FB | 7.08:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #6C91FB text on white | 2.96:1 | Fails | Lc 56.0 | Large or bold text, headings |
| #6C91FB text on black | 7.08:1 | AAA | Lc -45.8 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A6BFFF
oklch(80.9% 0.095 267.8)
-
Step 400
400 (this color)
#6C91FB
oklch(67.9% 0.162 267.5)
-
Step 500
500
#557EFF
oklch(63.2% 0.197 267.3)
-
Step 600
600
#3B60F4
oklch(55.5% 0.225 267.5)
-
Step 700
700
#2F4ED5
oklch(49.1% 0.209 267.6)
-
Step 800
800
#2741AC
oklch(42.7% 0.173 267.6)
-
Step 900
900
#233988
oklch(37.8% 0.135 267.6)
-
Step 950
950
#142250
oklch(27% 0.086 267.5)
#6C91FB 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) | #629DFF | 0.031 |
| Deuteranopia (no green cones) | #4F90F9 | 0.030 |
| Tritanopia (no blue cones) | #00A9BA | 0.145 |
| Achromatopsia (no color) | #969696 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C91FB
#6C91FB
oklch(67.9% 0.162 267.5)
- #BC9100
#BC9100
oklch(67.8% 0.139 87.4)
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 #6C91FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.027
- Soft Blue #6488EA ΔE 0.034
- Chefchaouen Blue #4895EF ΔE 0.041
- Lavender Blue #8B88F8 ΔE 0.042
- Periwinkle Blue #8F99FB ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.051
- Periwinkle #8E82FE ΔE 0.054
- Dark Sky Blue #448EE4 ΔE 0.054
Use #6C91FB 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.