#04525C
Closest named color: Deep Teal (#00555A). oklch(40.2% 0.068 209.2), rgb(4, 82, 92).
Aa
White text reads best on this color (8.87:1).
About this color
#04525C is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.068 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.011 away. White text reads best on it, at 8.87:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.36:1 |
| White text | 8.87:1 |
Values
| HEX | #04525C |
| RGB | rgb(4, 82, 92) |
| HSL | hsl(187, 92%, 19%) |
| OKLCH | oklch(40.2% 0.068 209.2) |
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 #04525C | 8.87:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #04525C | 2.36:1 | Fails | Lc 14.1 | Not readable |
| #04525C text on white | 8.87:1 | AAA | Lc 89.9 | Fine for body text |
| #04525C text on black | 2.36:1 | Fails | Lc -12.4 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#C9DDE1
oklch(88.4% 0.022 211)
-
Step 300
300
#A4C8CE
oklch(80.9% 0.039 208.8)
-
Step 400
400
#70ACB6
oklch(70.7% 0.064 209.1)
-
Step 500
500
#4597A4
oklch(63.1% 0.081 209.2)
-
Step 600
600
#1E818F
oklch(55.6% 0.088 209.3)
-
Step 700
700
#0B6D7A
oklch(49.1% 0.082 209.6)
-
Step 800
800 (this color)
#04525C
oklch(40.2% 0.068 209.2)
-
Step 900
900
#184951
oklch(37.6% 0.053 210.1)
-
Step 950
950
#102B2F
oklch(27% 0.033 208.2)
#04525C 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) | #494E5D | 0.064 |
| Deuteranopia (no green cones) | #3E475C | 0.057 |
| Tritanopia (no blue cones) | #005755 | 0.023 |
| Achromatopsia (no color) | #4A4A4A | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04525C
#04525C
oklch(40.2% 0.068 209.2)
- #683932
#683932
oklch(40.1% 0.068 29.4)
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 #04525C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.011
- Dark Teal #014D4E ΔE 0.026
- Dark Slate Gray #2F4F4F ΔE 0.032
- Dark Blue Green #005249 ΔE 0.033
- Charcoal #264653 ΔE 0.040
- Dark Grey Blue #29465B ΔE 0.043
- Petrol #005F6A ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.063
Use #04525C 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.