#255365
Closest named color: Deep Teal (#00555A). oklch(41.8% 0.058 226.4), rgb(37, 83, 101).
Aa
White text reads best on this color (8.38:1).
About this color
#255365 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.058 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.031 away. White text reads best on it, at 8.38:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #255365 |
| RGB | rgb(37, 83, 101) |
| HSL | hsl(197, 46%, 27%) |
| OKLCH | oklch(41.8% 0.058 226.4) |
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 #255365 | 8.38:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #255365 | 2.50:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #255365 text on white | 8.38:1 | AAA | Lc 88.8 | Fine for body text |
| #255365 text on black | 2.50:1 | Fails | Lc -13.4 | 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 800.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE3
oklch(88.5% 0.019 227.3)
-
Step 300
300
#AAC6D2
oklch(81% 0.035 225.6)
-
Step 400
400
#7CA8BB
oklch(70.7% 0.055 226.4)
-
Step 500
500
#5992AA
oklch(63% 0.07 226.8)
-
Step 600
600
#3D7C95
oklch(55.5% 0.075 226.5)
-
Step 700
700
#2E697F
oklch(49.1% 0.07 225.5)
-
Step 800
800 (this color)
#255365
oklch(41.8% 0.058 226.4)
-
Step 900
900
#254754
oklch(37.8% 0.045 224.9)
-
Step 950
950
#162931
oklch(26.8% 0.029 226.7)
#255365 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) | #495166 | 0.044 |
| Deuteranopia (no green cones) | #404B65 | 0.038 |
| Tritanopia (no blue cones) | #005859 | 0.036 |
| Achromatopsia (no color) | #4D4D4D | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #255365
#255365
oklch(41.8% 0.058 226.4)
- #674231
#674231
oklch(41.7% 0.058 45.4)
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 #255365, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.036
- Petrol #005F6A ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.041
- Charcoal #264653 ΔE 0.045
- Dark Teal #014D4E ΔE 0.049
- YInMn Blue #415A77 ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.050
Use #255365 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.