#6C91EB
Closest named color: Cornflower Blue (#6495ED). oklch(67% 0.14 265.9), rgb(108, 145, 235).
Aa
Black text reads best on this color (6.88:1).
About this color
#6C91EB is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.140 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.012 away. Black text reads best on it, at 6.88:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.88:1 |
| White text | 3.04:1 |
Values
| HEX | #6C91EB |
| RGB | rgb(108, 145, 235) |
| HSL | hsl(223, 76%, 67%) |
| OKLCH | oklch(67% 0.14 265.9) |
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 #6C91EB | 3.04:1 | AA large text | Lc -62.5 | Content text, not long reading |
| Black text on #6C91EB | 6.88:1 | AA | Lc 46.9 | Large or bold text, headings |
| #6C91EB text on white | 3.04:1 | AA large text | Lc 57.2 | Large or bold text, headings |
| #6C91EB text on black | 6.88:1 | AA | Lc -44.6 | 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 400.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FA
oklch(88.5% 0.048 266)
-
Step 300
300
#A6C0FA
oklch(80.9% 0.087 265.8)
-
Step 400
400 (this color)
#6C91EB
oklch(67% 0.14 265.9)
-
Step 500
500
#5581F5
oklch(63.1% 0.18 265.8)
-
Step 600
600
#3C67E3
oklch(55.5% 0.195 265.8)
-
Step 700
700
#2F55C6
oklch(49.2% 0.182 265.8)
-
Step 800
800
#2746A0
oklch(42.7% 0.151 265.8)
-
Step 900
900
#243C7F
oklch(37.7% 0.117 266.1)
-
Step 950
950
#15244A
oklch(27% 0.073 265.6)
#6C91EB 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) | #6C9AEF | 0.023 |
| Deuteranopia (no green cones) | #5D8EE9 | 0.019 |
| Tritanopia (no blue cones) | #24A5B3 | 0.126 |
| Achromatopsia (no color) | #949494 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C91EB
#6C91EB
oklch(67% 0.14 265.9)
- #BA8D00
#BA8D00
oklch(66.8% 0.137 85.8)
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 #6C91EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.012
- Soft Blue #6488EA ΔE 0.027
- Chefchaouen Blue #4895EF ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.043
- Perrywinkle #8F8CE7 ΔE 0.045
- Lavender Blue #8B88F8 ΔE 0.050
- Periwinkle Blue #8F99FB ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.064
Use #6C91EB 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.