#879BBA
Closest named color: Cool Gray (#8D99AE). oklch(68.5% 0.051 259.1), rgb(135, 155, 186).
Aa
Black text reads best on this color (7.42:1).
About this color
#879BBA is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.051 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.018 away. Black text reads best on it, at 7.42:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.42:1 |
| White text | 2.82:1 |
Values
| HEX | #879BBA |
| RGB | rgb(135, 155, 186) |
| HSL | hsl(216, 27%, 63%) |
| OKLCH | oklch(68.5% 0.051 259.1) |
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 #879BBA | 2.82:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #879BBA | 7.42:1 | AAA | Lc 49.8 | Large or bold text, headings |
| #879BBA text on white | 2.82:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #879BBA text on black | 7.42:1 | AAA | Lc -47.5 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D2DAE5
oklch(88.6% 0.017 256.3)
-
Step 300
300
#B4C2D6
oklch(81% 0.032 257.2)
-
Step 400
400 (this color)
#879BBA
oklch(68.5% 0.051 259.1)
-
Step 500
500
#728BB1
oklch(63.2% 0.064 258.6)
-
Step 600
600
#5A749D
oklch(55.5% 0.071 259.3)
-
Step 700
700
#4A6186
oklch(49% 0.066 259.7)
-
Step 800
800
#3D506D
oklch(42.8% 0.054 258.7)
-
Step 900
900
#344258
oklch(37.6% 0.042 259.3)
-
Step 950
950
#1E2734
oklch(27% 0.028 257.5)
#879BBA 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) | #919CBB | 0.014 |
| Deuteranopia (no green cones) | #8B97B9 | 0.011 |
| Tritanopia (no blue cones) | #79A1A5 | 0.045 |
| Achromatopsia (no color) | #9A9A9A | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #879BBA
#879BBA
oklch(68.5% 0.051 259.1)
- #AB9776
#AB9776
oklch(68.6% 0.052 80.1)
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 #879BBA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.018
- Bluey Grey #89A0B0 ΔE 0.024
- Greyblue #77A1B5 ΔE 0.028
- Bluegrey #85A3B2 ΔE 0.029
- Cool Steel #97A7B3 ΔE 0.045
- Cool Grey #95A3A6 ΔE 0.047
- Silver Lake Blue #778DA9 ΔE 0.049
- Blue Grey #758DA3 ΔE 0.054
Use #879BBA 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.