#899BC9
Closest named color: Cool Gray (#8D99AE). oklch(69.2% 0.071 267.9), rgb(137, 155, 201).
Aa
Black text reads best on this color (7.59:1).
About this color
#899BC9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.071 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.039 away. Black text reads best on it, at 7.59:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.59:1 |
| White text | 2.76:1 |
Values
| HEX | #899BC9 |
| RGB | rgb(137, 155, 201) |
| HSL | hsl(223, 37%, 66%) |
| OKLCH | oklch(69.2% 0.071 267.9) |
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 #899BC9 | 2.76:1 | Fails | Lc -58.6 | Large or bold text, headings |
| Black text on #899BC9 | 7.59:1 | AAA | Lc 50.7 | Large or bold text, headings |
| #899BC9 text on white | 2.76:1 | Fails | Lc 53.3 | Large or bold text, headings |
| #899BC9 text on black | 7.59:1 | AAA | Lc -48.5 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D2D9EA
oklch(88.5% 0.025 267.9)
-
Step 300
300
#B4C0DE
oklch(80.8% 0.044 268.1)
-
Step 400
400 (this color)
#899BC9
oklch(69.2% 0.071 267.9)
-
Step 500
500
#7287C1
oklch(63% 0.091 268.5)
-
Step 600
600
#5A70AD
oklch(55.5% 0.099 268)
-
Step 700
700
#4A5E95
oklch(49.1% 0.092 267.8)
-
Step 800
800
#3D4D79
oklch(42.7% 0.076 267.9)
-
Step 900
900
#344061
oklch(37.6% 0.059 268.2)
-
Step 950
950
#1E2639
oklch(27% 0.037 266.4)
#899BC9 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) | #8C9FCB | 0.012 |
| Deuteranopia (no green cones) | #8799C8 | 0.006 |
| Tritanopia (no blue cones) | #77A4AB | 0.063 |
| Achromatopsia (no color) | #9B9B9B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #899BC9
#899BC9
oklch(69.2% 0.071 267.9)
- #AE9A68
#AE9A68
oklch(69.2% 0.071 88.6)
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 #899BC9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.039
- Bluey Grey #89A0B0 ΔE 0.044
- Greyblue #77A1B5 ΔE 0.045
- Bluegrey #85A3B2 ΔE 0.047
- Cool Steel #97A7B3 ΔE 0.057
- Silver Lake Blue #778DA9 ΔE 0.062
- Cool Grey #95A3A6 ΔE 0.065
- Faded Blue #658CBB ΔE 0.066
Use #899BC9 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.