#2F5663
Closest named color: Petrol (#005F6A). oklch(43% 0.049 221.6), rgb(47, 86, 99).
Aa
White text reads best on this color (7.97:1).
About this color
#2F5663 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.049 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.034 away. White text reads best on it, at 7.97:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #2F5663 |
| RGB | rgb(47, 86, 99) |
| HSL | hsl(195, 36%, 29%) |
| OKLCH | oklch(43% 0.049 221.6) |
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 #2F5663 | 7.97:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #2F5663 | 2.63:1 | Fails | Lc 16.4 | Dividers and decoration only |
| #2F5663 text on white | 7.97:1 | AAA | Lc 87.6 | Fine for body text |
| #2F5663 text on black | 2.63:1 | Fails | Lc -14.6 | 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
#CEDCE1
oklch(88.5% 0.017 221.1)
-
Step 300
300
#ADC5CE
oklch(80.8% 0.029 222.4)
-
Step 400
400
#81A8B5
oklch(70.7% 0.046 220.3)
-
Step 500
500
#6192A3
oklch(63.1% 0.058 221.8)
-
Step 600
600
#467C8E
oklch(55.6% 0.064 221.6)
-
Step 700
700
#376879
oklch(49% 0.06 222.8)
-
Step 800
800 (this color)
#2F5663
oklch(43% 0.049 221.6)
-
Step 900
900
#2A4650
oklch(37.6% 0.038 222.7)
-
Step 950
950
#19292F
oklch(26.9% 0.024 223.4)
#2F5663 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) | #4E5464 | 0.040 |
| Deuteranopia (no green cones) | #464E63 | 0.036 |
| Tritanopia (no blue cones) | #125A5A | 0.032 |
| Achromatopsia (no color) | #515151 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5663
#2F5663
oklch(43% 0.049 221.6)
- #67473B
#67473B
oklch(43% 0.048 41.4)
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 #2F5663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.035
- Deep Teal #00555A ΔE 0.035
- YInMn Blue #415A77 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.053
- Charcoal #264653 ΔE 0.055
- Dark Teal #014D4E ΔE 0.057
Use #2F5663 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.