#6B91EE
Closest named color: Cornflower Blue (#6495ED). oklch(67.1% 0.145 265.9), rgb(107, 145, 238).
Aa
Black text reads best on this color (6.90:1).
About this color
#6B91EE is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.145 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 6.90:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.90:1 |
| White text | 3.03:1 |
Values
| HEX | #6B91EE |
| RGB | rgb(107, 145, 238) |
| HSL | hsl(223, 79%, 68%) |
| OKLCH | oklch(67.1% 0.145 265.9) |
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 #6B91EE | 3.03:1 | AA large text | Lc -62.4 | Content text, not long reading |
| Black text on #6B91EE | 6.90:1 | AA | Lc 47.0 | Large or bold text, headings |
| #6B91EE text on white | 3.03:1 | AA large text | Lc 57.0 | Large or bold text, headings |
| #6B91EE text on black | 6.90:1 | AA | Lc -44.8 | 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
#CAD9FB
oklch(88.5% 0.05 266.5)
-
Step 300
300
#A5C0FC
oklch(80.9% 0.09 265.7)
-
Step 400
400 (this color)
#6B91EE
oklch(67.1% 0.145 265.9)
-
Step 500
500
#5480F8
oklch(63% 0.186 266.1)
-
Step 600
600
#3B66E7
oklch(55.6% 0.201 266)
-
Step 700
700
#2E54C9
oklch(49.2% 0.187 265.9)
-
Step 800
800
#2645A2
oklch(42.6% 0.155 266)
-
Step 900
900
#233C81
oklch(37.8% 0.121 265.8)
-
Step 950
950
#14244B
oklch(27.1% 0.075 265)
#6B91EE 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) | #6A9AF2 | 0.023 |
| Deuteranopia (no green cones) | #5A8EEC | 0.021 |
| Tritanopia (no blue cones) | #19A5B4 | 0.129 |
| Achromatopsia (no color) | #949494 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B91EE
#6B91EE
oklch(67.1% 0.145 265.9)
- #BB8E00
#BB8E00
oklch(67.1% 0.137 86)
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 #6B91EE, 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 0.026
- Chefchaouen Blue #4895EF ΔE 0.033
- Dark Sky Blue #448EE4 ΔE 0.043
- Perrywinkle #8F8CE7 ΔE 0.046
- Lavender Blue #8B88F8 ΔE 0.048
- Periwinkle Blue #8F99FB ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.061
Use #6B91EE 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.