#B1D5D9
Closest named color: Celeste (#A8DADC). oklch(84.8% 0.038 204.7), rgb(177, 213, 217).
Aa
Black text reads best on this color (13.38:1).
About this color
#B1D5D9 is a light, muted teal or cyan. In OKLCH its lightness is 85%, its chroma 0.038 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.015 away. Black text reads best on it, at 13.38:1.
| Hue family | Teals and cyans |
| Lightness | light (85%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.38:1 |
| White text | 1.56:1 |
Values
| HEX | #B1D5D9 |
| RGB | rgb(177, 213, 217) |
| HSL | hsl(186, 34%, 77%) |
| OKLCH | oklch(84.8% 0.038 204.7) |
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 #B1D5D9 | 1.56:1 | Fails | Lc -29.3 | Dividers and decoration only |
| Black text on #B1D5D9 | 13.38:1 | AAA | Lc 77.8 | Fine for body text |
| #B1D5D9 text on white | 1.56:1 | Fails | Lc 25.9 | Dividers and decoration only |
| #B1D5D9 text on black | 13.38:1 | AAA | Lc -77.1 | Fine for body text |
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 200.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0EDEE
oklch(93.7% 0.014 202.5)
-
Step 200
200 (this color)
#B1D5D9
oklch(84.8% 0.038 204.7)
-
Step 300
300
#9CCAD0
oklch(80.8% 0.049 206.1)
-
Step 400
400
#60AFB8
oklch(70.7% 0.079 205.1)
-
Step 500
500
#209BA6
oklch(63.2% 0.101 204.3)
-
Step 600
600
#00838D
oklch(55.6% 0.095 204.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#062C30
oklch(27% 0.041 205.3)
#B1D5D9 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) | #CFD2D9 | 0.038 |
| Deuteranopia (no green cones) | #C8CCD9 | 0.036 |
| Tritanopia (no blue cones) | #A5D8D6 | 0.017 |
| Achromatopsia (no color) | #CECECE | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1D5D9
#B1D5D9
oklch(84.8% 0.038 204.7)
- #E6C4C1
#E6C4C1
oklch(84.9% 0.039 23.9)
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 #B1D5D9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.015
- Light Blue #ADD8E6 ΔE 0.017
- Powder Blue #B0E0E6 ΔE 0.029
- Cadet Gray #CED4DA ΔE 0.037
- Light Blue Grey #B7C9E2 ΔE 0.039
- Light Gray #D3D3D3 ΔE 0.043
- Light Steel Blue #B0C4DE ΔE 0.049
- Cloudy Blue #ACC2D9 ΔE 0.053
Use #B1D5D9 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.