#879ACC
Closest named color: Cool Gray (#8D99AE). oklch(69% 0.077 268.3), rgb(135, 154, 204).
Aa
Black text reads best on this color (7.52:1).
About this color
#879ACC is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.077 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.045 away. Black text reads best on it, at 7.52:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.52:1 |
| White text | 2.79:1 |
Values
| HEX | #879ACC |
| RGB | rgb(135, 154, 204) |
| HSL | hsl(223, 40%, 66%) |
| OKLCH | oklch(69% 0.077 268.3) |
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 #879ACC | 2.79:1 | Fails | Lc -59.0 | Large or bold text, headings |
| Black text on #879ACC | 7.52:1 | AAA | Lc 50.3 | Large or bold text, headings |
| #879ACC text on white | 2.79:1 | Fails | Lc 53.7 | Large or bold text, headings |
| #879ACC text on black | 7.52:1 | AAA | Lc -48.1 | 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
#E6EAF4
oklch(93.7% 0.014 268.5)
-
Step 200
200
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B3C0E1
oklch(80.9% 0.049 268.3)
-
Step 400
400 (this color)
#879ACC
oklch(69% 0.077 268.3)
-
Step 500
500
#7087C6
oklch(63.2% 0.099 268.2)
-
Step 600
600
#5970B2
oklch(55.7% 0.106 268.3)
-
Step 700
700
#495D99
oklch(49% 0.1 268.6)
-
Step 800
800
#3C4C7C
oklch(42.6% 0.083 268.8)
-
Step 900
900
#334064
oklch(37.7% 0.064 268.1)
-
Step 950
950
#1E263A
oklch(27.1% 0.039 267.1)
#879ACC 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) | #8A9ECE | 0.012 |
| Deuteranopia (no green cones) | #8498CB | 0.007 |
| Tritanopia (no blue cones) | #73A4AB | 0.069 |
| Achromatopsia (no color) | #9B9B9B | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #879ACC
#879ACC
oklch(69% 0.077 268.3)
- #AF9963
#AF9963
oklch(69% 0.077 88.2)
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 #879ACC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.045
- Greyblue #77A1B5 ΔE 0.049
- Bluey Grey #89A0B0 ΔE 0.050
- Bluegrey #85A3B2 ΔE 0.053
- Silver Lake Blue #778DA9 ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.062
- Cool Steel #97A7B3 ΔE 0.063
- Faded Blue #658CBB ΔE 0.064
Use #879ACC 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.