#275148
Closest named color: Dark Slate Gray (#2F4F4F). oklch(40.2% 0.05 178), rgb(39, 81, 72).
Aa
White text reads best on this color (8.91:1).
About this color
#275148 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.050 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.018 away. White text reads best on it, at 8.91:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.35:1 |
| White text | 8.91:1 |
Values
| HEX | #275148 |
| RGB | rgb(39, 81, 72) |
| HSL | hsl(167, 35%, 24%) |
| OKLCH | oklch(40.2% 0.05 178) |
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 #275148 | 8.91:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #275148 | 2.35:1 | Fails | Lc 13.7 | Not readable |
| #275148 text on white | 8.91:1 | AAA | Lc 90.3 | Preferred for body text |
| #275148 text on black | 2.35:1 | Fails | Lc -12.0 | Not readable |
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 900.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CBDED9
oklch(88.5% 0.021 178.3)
-
Step 300
300
#A8C9C0
oklch(80.9% 0.038 177)
-
Step 400
400
#77ADA0
oklch(70.6% 0.06 177.8)
-
Step 500
500
#519989
oklch(63.1% 0.077 177.5)
-
Step 600
600
#318373
oklch(55.5% 0.083 177.9)
-
Step 700
700
#226F61
oklch(49.1% 0.077 178.4)
-
Step 800
800
#1F5A4F
oklch(42.6% 0.064 178.6)
-
Step 900
900 (this color)
#275148
oklch(40.2% 0.05 178)
-
Step 950
950
#142C26
oklch(27.1% 0.032 175.7)
#275148 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) | #4E4D48 | 0.052 |
| Deuteranopia (no green cones) | #474849 | 0.049 |
| Tritanopia (no blue cones) | #15524E | 0.015 |
| Achromatopsia (no color) | #4A4A4A | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #275148
#275148
oklch(40.2% 0.05 178)
- #5E3D48
#5E3D48
oklch(40.2% 0.049 357.9)
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 #275148, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.018
- Dark Blue Green #005249 ΔE 0.022
- Dark Teal #014D4E ΔE 0.031
- Deep Teal #00555A ΔE 0.032
- Charcoal #264653 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.054
- Dark Green Blue #1F6357 ΔE 0.056
- Dark Grey Blue #29465B ΔE 0.056
Use #275148 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.