#6B91CC
Closest named color: Faded Blue (#658CBB). oklch(65.3% 0.098 259), rgb(107, 145, 204).
Aa
Black text reads best on this color (6.54:1).
About this color
#6B91CC is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.098 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.028 away. Black text reads best on it, at 6.54:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 6.54:1 |
| White text | 3.20:1 |
Values
| HEX | #6B91CC |
| RGB | rgb(107, 145, 204) |
| HSL | hsl(216, 49%, 61%) |
| OKLCH | oklch(65.3% 0.098 259) |
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 #6B91CC | 3.20:1 | AA large text | Lc -64.6 | Content text, not long reading |
| Black text on #6B91CC | 6.54:1 | AA | Lc 44.9 | Non-text elements, placeholder text |
| #6B91CC text on white | 3.20:1 | AA large text | Lc 59.2 | Large or bold text, headings |
| #6B91CC text on black | 6.54:1 | AA | Lc -42.5 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AEC2E0
oklch(80.9% 0.048 258.4)
-
Step 400
400
#84A2D1
oklch(70.7% 0.077 259.2)
-
Step 500
500 (this color)
#6B91CC
oklch(65.3% 0.098 259)
-
Step 600
600
#4C73B1
oklch(55.5% 0.107 259.3)
-
Step 700
700
#3D6199
oklch(49.2% 0.099 258.9)
-
Step 800
800
#324F7C
oklch(42.7% 0.083 258.9)
-
Step 900
900
#2C4264
oklch(37.7% 0.065 258.8)
-
Step 950
950
#1A273A
oklch(27% 0.04 257.8)
#6B91CC 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) | #7B95CF | 0.024 |
| Deuteranopia (no green cones) | #6F8CCB | 0.014 |
| Tritanopia (no blue cones) | #429EA6 | 0.087 |
| Achromatopsia (no color) | #909090 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B91CC
#6B91CC
oklch(65.3% 0.098 259)
- #B08945
#B08945
oklch(65.3% 0.098 79.5)
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 #6B91CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.028
- Cornflower Blue #6495ED ΔE 0.048
- Silver Lake Blue #778DA9 ΔE 0.052
- Dark Sky Blue #448EE4 ΔE 0.053
- Dusty Blue #5A86AD ΔE 0.057
- Soft Blue #6488EA ΔE 0.057
- Chefchaouen Blue #4895EF ΔE 0.058
- Cool Blue #4984B8 ΔE 0.061
Use #6B91CC 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.