#879DBD
Closest named color: Cool Gray (#8D99AE). oklch(69% 0.053 257.7), rgb(135, 157, 189).
Aa
Black text reads best on this color (7.58:1).
About this color
#879DBD is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.053 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.022 away. Black text reads best on it, at 7.58:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.58:1 |
| White text | 2.76:1 |
Values
| HEX | #879DBD |
| RGB | rgb(135, 157, 189) |
| HSL | hsl(216, 29%, 64%) |
| OKLCH | oklch(69% 0.053 257.7) |
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 #879DBD | 2.76:1 | Fails | Lc -58.6 | Large or bold text, headings |
| Black text on #879DBD | 7.58:1 | AAA | Lc 50.6 | Large or bold text, headings |
| #879DBD text on white | 2.76:1 | Fails | Lc 53.4 | Large or bold text, headings |
| #879DBD text on black | 7.58:1 | AAA | Lc -48.4 | Large or bold text, headings |
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 400.
-
Step 50
50
#F4F6F8
oklch(97.2% 0.003 247.9)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE6
oklch(88.6% 0.019 258.4)
-
Step 300
300
#B3C2D7
oklch(80.9% 0.034 256.8)
-
Step 400
400 (this color)
#879DBD
oklch(69% 0.053 257.7)
-
Step 500
500
#708BB3
oklch(63.1% 0.068 258.1)
-
Step 600
600
#58759F
oklch(55.7% 0.074 257.6)
-
Step 700
700
#486288
oklch(49.2% 0.069 257.8)
-
Step 800
800
#3B506E
oklch(42.7% 0.057 257.3)
-
Step 900
900
#334259
oklch(37.6% 0.044 258.8)
-
Step 950
950
#1E2734
oklch(27% 0.028 257.5)
#879DBD 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) | #929EBF | 0.015 |
| Deuteranopia (no green cones) | #8C99BC | 0.012 |
| Tritanopia (no blue cones) | #78A4A7 | 0.048 |
| Achromatopsia (no color) | #9B9B9B | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #879DBD
#879DBD
oklch(69% 0.053 257.7)
- #AE9876
#AE9876
oklch(69.1% 0.054 78.5)
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 #879DBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.022
- Bluey Grey #89A0B0 ΔE 0.024
- Greyblue #77A1B5 ΔE 0.027
- Bluegrey #85A3B2 ΔE 0.027
- Cool Steel #97A7B3 ΔE 0.042
- Cool Grey #95A3A6 ΔE 0.046
- Silver Lake Blue #778DA9 ΔE 0.054
- Blue Grey #758DA3 ΔE 0.059
Use #879DBD 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.