#2A576A
Closest named color: Petrol (#005F6A). oklch(43.3% 0.058 227.9), rgb(42, 87, 106).
Aa
White text reads best on this color (7.86:1).
About this color
#2A576A is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.058 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.031 away. White text reads best on it, at 7.86:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.66:1 |
| White text | 7.86:1 |
Values
| HEX | #2A576A |
| RGB | rgb(42, 87, 106) |
| HSL | hsl(198, 43%, 29%) |
| OKLCH | oklch(43.3% 0.058 227.9) |
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 #2A576A | 7.86:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #2A576A | 2.66:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #2A576A text on white | 7.86:1 | AAA | Lc 87.1 | Fine for body text |
| #2A576A text on black | 2.66:1 | Fails | Lc -15.0 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE3
oklch(88.5% 0.019 227.3)
-
Step 300
300
#ABC5D2
oklch(80.8% 0.034 229.4)
-
Step 400
400
#7DA8BC
oklch(70.8% 0.055 228.3)
-
Step 500
500
#5A92AB
oklch(63.1% 0.07 228.3)
-
Step 600
600
#3E7C96
oklch(55.6% 0.075 227.8)
-
Step 700
700
#2F6880
oklch(49% 0.071 228.4)
-
Step 800
800 (this color)
#2A576A
oklch(43.3% 0.058 227.9)
-
Step 900
900
#264655
oklch(37.6% 0.046 229.9)
-
Step 950
950
#172932
oklch(27% 0.029 231)
#2A576A 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) | #4D556B | 0.043 |
| Deuteranopia (no green cones) | #444F6A | 0.037 |
| Tritanopia (no blue cones) | #005C5D | 0.039 |
| Achromatopsia (no color) | #525252 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A576A
#2A576A
oklch(43.3% 0.058 227.9)
- #6B4734
#6B4734
oklch(43.4% 0.058 48.5)
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 #2A576A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.031
- YInMn Blue #415A77 ΔE 0.036
- Deep Teal #00555A ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.048
- Light Navy Blue #2E5A88 ΔE 0.050
- Dark Grey Blue #29465B ΔE 0.054
- Light Navy #155084 ΔE 0.056
Use #2A576A 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.