#879ECB
Closest named color: Cool Gray (#8D99AE). oklch(69.8% 0.071 263.6), rgb(135, 158, 203).
Aa
Black text reads best on this color (7.78:1).
About this color
#879ECB is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.071 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.041 away. Black text reads best on it, at 7.78:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.78:1 |
| White text | 2.69:1 |
Values
| HEX | #879ECB |
| RGB | rgb(135, 158, 203) |
| HSL | hsl(220, 40%, 66%) |
| OKLCH | oklch(69.8% 0.071 263.6) |
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 #879ECB | 2.69:1 | Fails | Lc -57.5 | Large or bold text, headings |
| Black text on #879ECB | 7.78:1 | AAA | Lc 51.7 | Large or bold text, headings |
| #879ECB text on white | 2.69:1 | Fails | Lc 52.3 | Large or bold text, headings |
| #879ECB text on black | 7.78:1 | AAA | Lc -49.6 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EA
oklch(88.4% 0.025 265.6)
-
Step 300
300
#B2C1DE
oklch(80.9% 0.044 263.6)
-
Step 400
400 (this color)
#879ECB
oklch(69.8% 0.071 263.6)
-
Step 500
500
#6D89C1
oklch(63.1% 0.091 263.6)
-
Step 600
600
#5572AD
oklch(55.6% 0.098 263.6)
-
Step 700
700
#455F95
oklch(49% 0.093 263.8)
-
Step 800
800
#394E79
oklch(42.7% 0.077 263.7)
-
Step 900
900
#314161
oklch(37.7% 0.059 263.5)
-
Step 950
950
#1D2639
oklch(27% 0.038 264.5)
#879ECB 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) | #8FA1CD | 0.014 |
| Deuteranopia (no green cones) | #889BCA | 0.008 |
| Tritanopia (no blue cones) | #73A7AD | 0.064 |
| Achromatopsia (no color) | #9D9D9D | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #879ECB
#879ECB
oklch(69.8% 0.071 263.6)
- #B39A6A
#B39A6A
oklch(69.7% 0.071 83.2)
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 #879ECB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.041
- Bluey Grey #89A0B0 ΔE 0.043
- Greyblue #77A1B5 ΔE 0.043
- Bluegrey #85A3B2 ΔE 0.044
- Cool Steel #97A7B3 ΔE 0.054
- Cool Grey #95A3A6 ΔE 0.063
- Silver Lake Blue #778DA9 ΔE 0.066
- Faded Blue #658CBB ΔE 0.070
Use #879ECB 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.