#6B91DC
Closest named color: Cornflower Blue (#6495ED). oklch(66.1% 0.12 263.1), rgb(107, 145, 220).
Aa
Black text reads best on this color (6.70:1).
About this color
#6B91DC is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.120 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.026 away. Black text reads best on it, at 6.70:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.70:1 |
| White text | 3.13:1 |
Values
| HEX | #6B91DC |
| RGB | rgb(107, 145, 220) |
| HSL | hsl(220, 62%, 64%) |
| OKLCH | oklch(66.1% 0.12 263.1) |
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 #6B91DC | 3.13:1 | AA large text | Lc -63.6 | Content text, not long reading |
| Black text on #6B91DC | 6.70:1 | AA | Lc 45.8 | Large or bold text, headings |
| #6B91DC text on white | 3.13:1 | AA large text | Lc 58.2 | Large or bold text, headings |
| #6B91DC text on black | 6.70:1 | AA | Lc -43.5 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ADC1E7
oklch(80.9% 0.058 263.2)
-
Step 400
400
#82A0DC
oklch(70.7% 0.095 263.7)
-
Step 500
500 (this color)
#6B91DC
oklch(66.1% 0.12 263.1)
-
Step 600
600
#4970BF
oklch(55.5% 0.131 263)
-
Step 700
700
#3B5EA5
oklch(49.2% 0.121 262.9)
-
Step 800
800
#314D86
oklch(42.8% 0.101 263.1)
-
Step 900
900
#2B406B
oklch(37.6% 0.079 263.4)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#6B91DC 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) | #7497DF | 0.020 |
| Deuteranopia (no green cones) | #678DDA | 0.012 |
| Tritanopia (no blue cones) | #34A1AC | 0.108 |
| Achromatopsia (no color) | #929292 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B91DC
#6B91DC
oklch(66.1% 0.12 263.1)
- #B68B2B
#B68B2B
oklch(66.1% 0.12 83.2)
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 #6B91DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.026
- Soft Blue #6488EA ΔE 0.037
- Chefchaouen Blue #4895EF ΔE 0.040
- Dark Sky Blue #448EE4 ΔE 0.041
- Faded Blue #658CBB ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.051
- Lavender Blue #8B88F8 ΔE 0.066
- Periwinkle Blue #8F99FB ΔE 0.069
Use #6B91DC 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.