#6C7499
Closest named color: Grey Blue (#647D8E). oklch(56.7% 0.058 274.9), rgb(108, 116, 153).
Aa
Black text reads best on this color (4.59:1).
About this color
#6C7499 is a medium-dark, muted blue. In OKLCH its lightness is 57%, its chroma 0.058 and its hue 275°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Blue (#647D8E), ΔE 0.037 away. Black text reads best on it, at 4.59:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Grey Blue (#647D8E) |
| Black text | 4.59:1 |
| White text | 4.56:1 |
Values
| HEX | #6C7499 |
| RGB | rgb(108, 116, 153) |
| HSL | hsl(229, 18%, 51%) |
| OKLCH | oklch(56.7% 0.058 274.9) |
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 #6C7499 | 4.56:1 | AA | Lc -77.2 | Fine for body text |
| Black text on #6C7499 | 4.59:1 | AA | Lc 32.4 | Non-text elements, placeholder text |
| #6C7499 text on white | 4.56:1 | AA | Lc 71.7 | Content text, not long reading |
| #6C7499 text on black | 4.59:1 | AA | Lc -29.9 | Dividers and decoration only |
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 600.
-
Step 50
50
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E8E9EF
oklch(93.5% 0.008 278.6)
-
Step 200
200
#D6D9E3
oklch(88.6% 0.014 272.7)
-
Step 300
300
#BBC0D2
oklch(80.9% 0.026 273.4)
-
Step 400
400
#989FBB
oklch(70.6% 0.042 274.2)
-
Step 500
500
#8087AA
oklch(63% 0.053 275.9)
-
Step 600
600 (this color)
#6C7499
oklch(56.7% 0.058 274.9)
-
Step 700
700
#575F80
oklch(49.2% 0.054 273.7)
-
Step 800
800
#484D68
oklch(42.7% 0.045 276.2)
-
Step 900
900
#3C4054
oklch(37.6% 0.035 275.8)
-
Step 950
950
#232631
oklch(27% 0.021 273)
#6C7499 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) | #69779B | 0.009 |
| Deuteranopia (no green cones) | #667498 | 0.009 |
| Tritanopia (no blue cones) | #607B81 | 0.052 |
| Achromatopsia (no color) | #767676 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6C7499
#6C7499
oklch(56.7% 0.058 274.9)
- #81764E
#81764E
oklch(56.6% 0.058 94.6)
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 #6C7499, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Blue #647D8E ΔE 0.037
- Stormy Blue #507B9C ΔE 0.038
- Grey Purple #826D8C ΔE 0.038
- Slate Gray #708090 ΔE 0.042
- Lavender Gray #7E7F9A ΔE 0.043
- Metallic Blue #4F738E ΔE 0.043
- Dull Blue #49759C ΔE 0.043
- Battleship Grey #6B7C85 ΔE 0.045
Use #6C7499 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.