#6B8A9E
Closest named color: Light Slate Gray (#778899). oklch(61.7% 0.046 236.8), rgb(107, 138, 158).
Aa
Black text reads best on this color (5.75:1).
About this color
#6B8A9E is a medium-dark, muted blue. In OKLCH its lightness is 62%, its chroma 0.046 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.016 away. Black text reads best on it, at 5.75:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.75:1 |
| White text | 3.64:1 |
Values
| HEX | #6B8A9E |
| RGB | rgb(107, 138, 158) |
| HSL | hsl(204, 21%, 52%) |
| OKLCH | oklch(61.7% 0.046 236.8) |
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 #6B8A9E | 3.64:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #6B8A9E | 5.75:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #6B8A9E text on white | 3.64:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #6B8A9E text on black | 5.75:1 | AA | Lc -37.6 | 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 500.
-
Step 50
50
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBEE
oklch(93.7% 0.007 233.6)
-
Step 200
200
#D2DBE0
oklch(88.6% 0.012 231.7)
-
Step 300
300
#B4C3CE
oklch(80.9% 0.023 239.5)
-
Step 400
400
#8CA5B5
oklch(70.8% 0.036 236.1)
-
Step 500
500 (this color)
#6B8A9E
oklch(61.7% 0.046 236.8)
-
Step 600
600
#57788D
oklch(55.6% 0.05 236.8)
-
Step 700
700
#476578
oklch(49.1% 0.047 236.8)
-
Step 800
800
#3A5262
oklch(42.6% 0.04 238.1)
-
Step 900
900
#324450
oklch(37.6% 0.031 237.8)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#6B8A9E 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) | #81899F | 0.029 |
| Deuteranopia (no green cones) | #7A839E | 0.027 |
| Tritanopia (no blue cones) | #5B8F90 | 0.036 |
| Achromatopsia (no color) | #868686 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B8A9E
#6B8A9E
oklch(61.7% 0.046 236.8)
- #9B7F6A
#9B7F6A
oklch(61.7% 0.046 58.6)
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 #6B8A9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.016
- Blue Grey #758DA3 ΔE 0.017
- Steel #738595 ΔE 0.018
- Silver Lake Blue #778DA9 ΔE 0.024
- Slate Gray #708090 ΔE 0.030
- Steel Grey #6F828A ΔE 0.032
- Dusty Blue #5A86AD ΔE 0.035
- Lavender Gray #7E7F9A ΔE 0.037
Use #6B8A9E 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.