#2A5564
Closest named color: Deep Teal (#00555A). oklch(42.5% 0.054 223.1), rgb(42, 85, 100).
Aa
White text reads best on this color (8.13:1).
About this color
#2A5564 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.054 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.032 away. White text reads best on it, at 8.13:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.58:1 |
| White text | 8.13:1 |
Values
| HEX | #2A5564 |
| RGB | rgb(42, 85, 100) |
| HSL | hsl(196, 41%, 28%) |
| OKLCH | oklch(42.5% 0.054 223.1) |
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 #2A5564 | 8.13:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #2A5564 | 2.58:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #2A5564 text on white | 8.13:1 | AAA | Lc 88.0 | Fine for body text |
| #2A5564 text on black | 2.58:1 | Fails | Lc -14.1 | 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
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#ACC6D0
oklch(81% 0.031 223)
-
Step 400
400
#7FA8B8
oklch(70.7% 0.05 223.9)
-
Step 500
500
#5C92A6
oklch(63% 0.065 223.5)
-
Step 600
600
#417C91
oklch(55.5% 0.069 223.5)
-
Step 700
700
#32697C
oklch(49.2% 0.065 223.2)
-
Step 800
800 (this color)
#2A5564
oklch(42.5% 0.054 223.1)
-
Step 900
900
#274752
oklch(37.8% 0.042 222.2)
-
Step 950
950
#172930
oklch(26.9% 0.027 224.6)
#2A5564 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) | #4C5365 | 0.043 |
| Deuteranopia (no green cones) | #444D64 | 0.038 |
| Tritanopia (no blue cones) | #005A5A | 0.036 |
| Achromatopsia (no color) | #4F4F4F | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5564
#2A5564
oklch(42.5% 0.054 223.1)
- #684536
#684536
oklch(42.6% 0.054 44)
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 #2A5564, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.032
- Petrol #005F6A ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.035
- YInMn Blue #415A77 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.047
- Charcoal #264653 ΔE 0.051
- Dark Teal #014D4E ΔE 0.053
- Deep Sea Blue #015482 ΔE 0.055
Use #2A5564 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.