#899FCB
Closest named color: Cool Gray (#8D99AE). oklch(70.2% 0.07 264), rgb(137, 159, 203).
Aa
Black text reads best on this color (7.88:1).
About this color
#899FCB is a medium-light, muted blue. In OKLCH its lightness is 70%, its chroma 0.070 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 7.88:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.88:1 |
| White text | 2.66:1 |
Values
| HEX | #899FCB |
| RGB | rgb(137, 159, 203) |
| HSL | hsl(220, 39%, 67%) |
| OKLCH | oklch(70.2% 0.07 264) |
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 #899FCB | 2.66:1 | Fails | Lc -57.0 | Large or bold text, headings |
| Black text on #899FCB | 7.88:1 | AAA | Lc 52.2 | Large or bold text, headings |
| #899FCB text on white | 2.66:1 | Fails | Lc 51.8 | Large or bold text, headings |
| #899FCB text on black | 7.88:1 | AAA | Lc -50.1 | 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
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)
#899FCB
oklch(70.2% 0.07 264)
-
Step 500
500
#6E89C0
oklch(63.2% 0.089 263.9)
-
Step 600
600
#5672AC
oklch(55.6% 0.097 263.9)
-
Step 700
700
#465F94
oklch(49% 0.091 264.2)
-
Step 800
800
#3A4E78
oklch(42.7% 0.075 264.1)
-
Step 900
900
#324161
oklch(37.7% 0.059 264.6)
-
Step 950
950
#1D2639
oklch(27% 0.038 264.5)
#899FCB 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) | #90A2CD | 0.013 |
| Deuteranopia (no green cones) | #8A9CCA | 0.008 |
| Tritanopia (no blue cones) | #76A8AE | 0.062 |
| Achromatopsia (no color) | #9E9E9E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #899FCB
#899FCB
oklch(70.2% 0.07 264)
- #B49C6D
#B49C6D
oklch(70.3% 0.069 83.7)
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 #899FCB, 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 0.042
- Bluegrey #85A3B2 ΔE 0.043
- Greyblue #77A1B5 ΔE 0.043
- Cool Steel #97A7B3 ΔE 0.051
- Cool Grey #95A3A6 ΔE 0.061
- Silver Lake Blue #778DA9 ΔE 0.069
- Perrywinkle #8F8CE7 ΔE 0.074
Use #899FCB 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.