#6B8CA3
Closest named color: Blue Grey (#758DA3). oklch(62.4% 0.051 239), rgb(107, 140, 163).
Aa
Black text reads best on this color (5.90:1).
About this color
#6B8CA3 is a medium-light, muted blue. In OKLCH its lightness is 62%, its chroma 0.051 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.013 away. Black text reads best on it, at 5.90:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 5.90:1 |
| White text | 3.55:1 |
Values
| HEX | #6B8CA3 |
| RGB | rgb(107, 140, 163) |
| HSL | hsl(205, 23%, 53%) |
| OKLCH | oklch(62.4% 0.051 239) |
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 #6B8CA3 | 3.55:1 | AA large text | Lc -68.6 | Content text, not long reading |
| Black text on #6B8CA3 | 5.90:1 | AA | Lc 41.0 | Non-text elements, placeholder text |
| #6B8CA3 text on white | 3.55:1 | AA large text | Lc 63.1 | Content text, not long reading |
| #6B8CA3 text on black | 5.90:1 | AA | Lc -38.6 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E6EBEE
oklch(93.7% 0.007 233.6)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B3C3CF
oklch(80.9% 0.024 240.2)
-
Step 400
400
#8AA5B7
oklch(70.8% 0.04 237.3)
-
Step 500
500 (this color)
#6B8CA3
oklch(62.4% 0.051 239)
-
Step 600
600
#557891
oklch(55.6% 0.056 240.1)
-
Step 700
700
#45657B
oklch(49.1% 0.051 239.2)
-
Step 800
800
#395264
oklch(42.6% 0.043 240.3)
-
Step 900
900
#314451
oklch(37.6% 0.033 238.7)
-
Step 950
950
#1D2830
oklch(27% 0.021 240.1)
#6B8CA3 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) | #828BA4 | 0.030 |
| Deuteranopia (no green cones) | #7A85A3 | 0.026 |
| Tritanopia (no blue cones) | #599293 | 0.041 |
| Achromatopsia (no color) | #888888 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6B8CA3
#6B8CA3
oklch(62.4% 0.051 239)
- #9F8069
#9F8069
oklch(62.3% 0.051 58.2)
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 #6B8CA3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.013
- Silver Lake Blue #778DA9 ΔE 0.019
- Light Slate Gray #778899 ΔE 0.020
- Steel #738595 ΔE 0.025
- Dusty Blue #5A86AD ΔE 0.034
- Faded Blue #658CBB ΔE 0.037
- Slate Gray #708090 ΔE 0.037
- Steel Grey #6F828A ΔE 0.040
Use #6B8CA3 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.