#899FB0
Closest named color: Bluey Grey (#89A0B0). oklch(69.1% 0.035 241.3), rgb(137, 159, 176).
Aa
Black text reads best on this color (7.64:1).
About this color
#899FB0 is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.035 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Grey (#89A0B0), ΔE 0.003 away. Black text reads best on it, at 7.64:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Bluey Grey (#89A0B0) |
| Black text | 7.64:1 |
| White text | 2.74:1 |
Values
| HEX | #899FB0 |
| RGB | rgb(137, 159, 176) |
| HSL | hsl(206, 20%, 61%) |
| OKLCH | oklch(69.1% 0.035 241.3) |
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 #899FB0 | 2.74:1 | Fails | Lc -58.3 | Large or bold text, headings |
| Black text on #899FB0 | 7.64:1 | AAA | Lc 51.0 | Large or bold text, headings |
| #899FB0 text on white | 2.74:1 | Fails | Lc 53.1 | Large or bold text, headings |
| #899FB0 text on black | 7.64:1 | AAA | Lc -48.8 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B5C3CE
oklch(81% 0.022 241.4)
-
Step 400
400 (this color)
#899FB0
oklch(69.1% 0.035 241.3)
-
Step 500
500
#728DA3
oklch(63% 0.045 243.1)
-
Step 600
600
#5A778E
oklch(55.6% 0.049 242.6)
-
Step 700
700
#496479
oklch(49% 0.047 242.2)
-
Step 800
800
#3C5262
oklch(42.7% 0.038 240.3)
-
Step 900
900
#344450
oklch(37.8% 0.029 240.9)
-
Step 950
950
#1E282F
oklch(27% 0.019 238.9)
#899FB0 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) | #989FB1 | 0.020 |
| Deuteranopia (no green cones) | #939AB0 | 0.018 |
| Tritanopia (no blue cones) | #7EA3A4 | 0.028 |
| Achromatopsia (no color) | #9C9C9C | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #899FB0
#899FB0
oklch(69.1% 0.035 241.3)
- #AC9786
#AC9786
oklch(69% 0.035 61.2)
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 #899FB0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Grey #89A0B0 ΔE 0.003
- Bluegrey #85A3B2 ΔE 0.011
- Cool Gray #8D99AE ΔE 0.016
- Greyblue #77A1B5 ΔE 0.022
- Cool Grey #95A3A6 ΔE 0.026
- Cool Steel #97A7B3 ΔE 0.030
- Pewter #96A8A1 ΔE 0.043
- Dark Gray #A9A9A9 ΔE 0.056
Use #899FB0 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.