#6B8799
Closest named color: Steel (#738595). oklch(60.8% 0.042 236.6), rgb(107, 135, 153).
Aa
Black text reads best on this color (5.55:1).
About this color
#6B8799 is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.042 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.011 away. Black text reads best on it, at 5.55:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.55:1 |
| White text | 3.78:1 |
Values
| HEX | #6B8799 |
| RGB | rgb(107, 135, 153) |
| HSL | hsl(203, 18%, 51%) |
| OKLCH | oklch(60.8% 0.042 236.6) |
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 #6B8799 | 3.78:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #6B8799 | 5.55:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #6B8799 text on white | 3.78:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #6B8799 text on black | 5.55:1 | AA | Lc -36.3 | 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
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B5C3CC
oklch(80.9% 0.02 235.8)
-
Step 400
400
#8EA4B3
oklch(70.7% 0.033 237.8)
-
Step 500
500 (this color)
#6B8799
oklch(60.8% 0.042 236.6)
-
Step 600
600
#5A788B
oklch(55.7% 0.045 236.5)
-
Step 700
700
#496576
oklch(49.1% 0.043 235.4)
-
Step 800
800
#3C5260
oklch(42.6% 0.036 236.6)
-
Step 900
900
#34444E
oklch(37.7% 0.027 235.9)
-
Step 950
950
#1E282E
oklch(27% 0.018 234.7)
#6B8799 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) | #7F869A | 0.027 |
| Deuteranopia (no green cones) | #798199 | 0.024 |
| Tritanopia (no blue cones) | #5D8C8D | 0.032 |
| Achromatopsia (no color) | #838383 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B8799
#6B8799
oklch(60.8% 0.042 236.6)
- #977D6A
#977D6A
oklch(60.9% 0.043 58)
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 #6B8799, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.011
- Light Slate Gray #778899 ΔE 0.016
- Slate Gray #708090 ΔE 0.021
- Steel Grey #6F828A ΔE 0.023
- Blue Grey #758DA3 ΔE 0.025
- Grey Blue #647D8E ΔE 0.032
- Silver Lake Blue #778DA9 ΔE 0.032
- Lavender Gray #7E7F9A ΔE 0.033
Use #6B8799 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.