#2F5563
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.7% 0.049 223.9), rgb(47, 85, 99).
Aa
White text reads best on this color (8.07:1).
About this color
#2F5563 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.049 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.034 away. White text reads best on it, at 8.07:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.60:1 |
| White text | 8.07:1 |
Values
| HEX | #2F5563 |
| RGB | rgb(47, 85, 99) |
| HSL | hsl(196, 36%, 29%) |
| OKLCH | oklch(42.7% 0.049 223.9) |
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 #2F5563 | 8.07:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #2F5563 | 2.60:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #2F5563 text on white | 8.07:1 | AAA | Lc 87.9 | Fine for body text |
| #2F5563 text on black | 2.60:1 | Fails | Lc -14.3 | 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
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CFDCE1
oklch(88.6% 0.016 222.7)
-
Step 300
300
#AEC5CE
oklch(80.9% 0.028 223.3)
-
Step 400
400
#82A7B6
oklch(70.6% 0.046 224.7)
-
Step 500
500
#6192A4
oklch(63.2% 0.059 223.1)
-
Step 600
600
#477C8F
oklch(55.7% 0.064 223.2)
-
Step 700
700
#38687A
oklch(49.1% 0.06 224.5)
-
Step 800
800 (this color)
#2F5563
oklch(42.7% 0.049 223.9)
-
Step 900
900
#2A4651
oklch(37.7% 0.039 224.9)
-
Step 950
950
#19292F
oklch(26.9% 0.024 223.4)
#2F5563 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) | #4D5364 | 0.039 |
| Deuteranopia (no green cones) | #454D63 | 0.035 |
| Tritanopia (no blue cones) | #135959 | 0.033 |
| Achromatopsia (no color) | #505050 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5563
#2F5563
oklch(42.7% 0.049 223.9)
- #664639
#664639
oklch(42.6% 0.049 43)
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 #2F5563, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.034
- Deep Teal #00555A ΔE 0.035
- Petrol #005F6A ΔE 0.036
- YInMn Blue #415A77 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.049
- Charcoal #264653 ΔE 0.052
- Dark Teal #014D4E ΔE 0.056
- Dark Green Blue #1F6357 ΔE 0.056
Use #2F5563 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.