#275E65
Closest named color: Petrol (#005F6A). oklch(44.8% 0.058 206.6), rgb(39, 94, 101).
Aa
White text reads best on this color (7.30:1).
About this color
#275E65 is a dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.058 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.019 away. White text reads best on it, at 7.30:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #275E65 |
| RGB | rgb(39, 94, 101) |
| HSL | hsl(187, 44%, 27%) |
| OKLCH | oklch(44.8% 0.058 206.6) |
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 #275E65 | 7.30:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #275E65 | 2.87:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #275E65 text on white | 7.30:1 | AAA | Lc 85.2 | Fine for body text |
| #275E65 text on black | 2.87:1 | Fails | Lc -16.8 | Dividers and decoration only |
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 800.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDDF
oklch(88.5% 0.018 205.3)
-
Step 300
300
#A8C7CC
oklch(80.8% 0.034 208.4)
-
Step 400
400
#78ABB2
oklch(70.8% 0.055 206.7)
-
Step 500
500
#52969F
oklch(63.2% 0.07 206.6)
-
Step 600
600
#33808A
oklch(55.7% 0.076 207)
-
Step 700
700
#246C75
oklch(49.1% 0.071 206.9)
-
Step 800
800 (this color)
#275E65
oklch(44.8% 0.058 206.6)
-
Step 900
900
#21484E
oklch(37.6% 0.045 208.6)
-
Step 950
950
#142B2D
oklch(27.1% 0.029 202.9)
#275E65 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) | #575A65 | 0.058 |
| Deuteranopia (no green cones) | #4D5365 | 0.053 |
| Tritanopia (no blue cones) | #006260 | 0.025 |
| Achromatopsia (no color) | #565656 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #275E65
#275E65
oklch(44.8% 0.058 206.6)
- #724843
#724843
oklch(44.8% 0.059 27.1)
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 #275E65, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.019
- Dark Green Blue #1F6357 ΔE 0.033
- Dark Aqua #05696B ΔE 0.034
- Deep Teal #00555A ΔE 0.041
- YInMn Blue #415A77 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.051
- Slate #516572 ΔE 0.058
- Dark Blue Green #005249 ΔE 0.062
Use #275E65 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.