#2B6174
Closest named color: Petrol (#005F6A). oklch(46.4% 0.065 224), rgb(43, 97, 116).
Aa
White text reads best on this color (6.85:1).
About this color
#2B6174 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.065 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.030 away. White text reads best on it, at 6.85:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 3.06:1 |
| White text | 6.85:1 |
Values
| HEX | #2B6174 |
| RGB | rgb(43, 97, 116) |
| HSL | hsl(196, 46%, 31%) |
| OKLCH | oklch(46.4% 0.065 224) |
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 #2B6174 | 6.85:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #2B6174 | 3.06:1 | AA large text | Lc 20.5 | Dividers and decoration only |
| #2B6174 text on white | 6.85:1 | AA | Lc 83.5 | Fine for body text |
| #2B6174 text on black | 3.06:1 | AA large text | Lc -18.5 | Dividers and decoration only |
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 700.
-
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
#CEDCE2
oklch(88.6% 0.017 225.2)
-
Step 300
300
#ACC5D0
oklch(80.8% 0.031 226.1)
-
Step 400
400
#7FA8B8
oklch(70.7% 0.05 223.9)
-
Step 500
500
#5D92A6
oklch(63% 0.064 223.9)
-
Step 600
600
#427C91
oklch(55.5% 0.069 223.8)
-
Step 700
700 (this color)
#2B6174
oklch(46.4% 0.065 224)
-
Step 800
800
#2B5565
oklch(42.6% 0.054 225.1)
-
Step 900
900
#284652
oklch(37.6% 0.041 225.6)
-
Step 950
950
#182930
oklch(26.9% 0.026 225.8)
#2B6174 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) | #565F75 | 0.050 |
| Deuteranopia (no green cones) | #4C5774 | 0.046 |
| Tritanopia (no blue cones) | #006767 | 0.039 |
| Achromatopsia (no color) | #5A5A5A | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B6174
#2B6174
oklch(46.4% 0.065 224)
- #784D3B
#784D3B
oklch(46.4% 0.065 43.4)
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 #2B6174, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.030
- YInMn Blue #415A77 ΔE 0.031
- Dark Aqua #05696B ΔE 0.037
- Denim #3B638C ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.045
- Slate #516572 ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.053
- Peacock Blue #016795 ΔE 0.053
Use #2B6174 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.