#2F584E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.7% 0.05 176.3), rgb(47, 88, 78).
Aa
White text reads best on this color (7.99:1).
About this color
#2F584E is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.050 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.031 away. White text reads best on it, at 7.99:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.62:1 |
| White text | 7.99:1 |
Values
| HEX | #2F584E |
| RGB | rgb(47, 88, 78) |
| HSL | hsl(165, 30%, 26%) |
| OKLCH | oklch(42.7% 0.05 176.3) |
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 #2F584E | 7.99:1 | AAA | Lc -92.3 | Preferred for body text |
| Black text on #2F584E | 2.62:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #2F584E text on white | 7.99:1 | AAA | Lc 87.6 | Fine for body text |
| #2F584E text on black | 2.62:1 | Fails | Lc -14.5 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CFDDD9
oklch(88.6% 0.016 177)
-
Step 300
300
#AEC7C0
oklch(80.9% 0.029 176.9)
-
Step 400
400
#82AAA0
oklch(70.6% 0.046 177.9)
-
Step 500
500
#629688
oklch(63.2% 0.06 175.5)
-
Step 600
600
#478072
oklch(55.6% 0.065 176.1)
-
Step 700
700
#386C5F
oklch(49.1% 0.06 175.5)
-
Step 800
800 (this color)
#2F584E
oklch(42.7% 0.05 176.3)
-
Step 900
900
#2A4841
oklch(37.6% 0.038 177.6)
-
Step 950
950
#192A26
oklch(26.9% 0.024 178)
#2F584E 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) | #55534E | 0.052 |
| Deuteranopia (no green cones) | #4E4F4F | 0.048 |
| Tritanopia (no blue cones) | #205955 | 0.015 |
| Achromatopsia (no color) | #515151 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F584E
#2F584E
oklch(42.7% 0.05 176.3)
- #654450
#654450
oklch(42.8% 0.049 355.8)
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 #2F584E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.031
- Dark Green Blue #1F6357 ΔE 0.034
- Deep Teal #00555A ΔE 0.037
- Dark Blue Green #005249 ΔE 0.040
- Petrol #005F6A ΔE 0.047
- Pine #2B5D34 ΔE 0.049
- Dark Teal #014D4E ΔE 0.052
- Spruce #0A5F38 ΔE 0.055
Use #2F584E 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.