#2E555F
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.5% 0.047 216.2), rgb(46, 85, 95).
Aa
White text reads best on this color (8.13:1).
About this color
#2E555F is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.047 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.028 away. White text reads best on it, at 8.13:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.58:1 |
| White text | 8.13:1 |
Values
| HEX | #2E555F |
| RGB | rgb(46, 85, 95) |
| HSL | hsl(192, 35%, 28%) |
| OKLCH | oklch(42.5% 0.047 216.2) |
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 #2E555F | 8.13:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #2E555F | 2.58:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #2E555F text on white | 8.13:1 | AAA | Lc 88.1 | Fine for body text |
| #2E555F text on black | 2.58:1 | Fails | Lc -14.1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#AEC5CC
oklch(80.8% 0.027 218)
-
Step 400
400
#82A8B2
oklch(70.7% 0.044 215.6)
-
Step 500
500
#61929F
oklch(63% 0.056 216.3)
-
Step 600
600
#467C8A
oklch(55.4% 0.061 216.4)
-
Step 700
700
#386975
oklch(49.1% 0.056 215.5)
-
Step 800
800 (this color)
#2E555F
oklch(42.5% 0.047 216.2)
-
Step 900
900
#2A474E
oklch(37.8% 0.037 214.7)
-
Step 950
950
#19292E
oklch(26.9% 0.023 219.4)
#2E555F 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) | #4E5360 | 0.042 |
| Deuteranopia (no green cones) | #474D5F | 0.039 |
| Tritanopia (no blue cones) | #145958 | 0.028 |
| Achromatopsia (no color) | #4F4F4F | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2E555F
#2E555F
oklch(42.5% 0.047 216.2)
- #65453C
#65453C
oklch(42.4% 0.047 36.3)
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 #2E555F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.028
- Deep Teal #00555A ΔE 0.031
- Petrol #005F6A ΔE 0.036
- YInMn Blue #415A77 ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.049
- Charcoal #264653 ΔE 0.050
- Dark Teal #014D4E ΔE 0.051
- Dark Blue Green #005249 ΔE 0.051
Use #2E555F 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.