#04939B
Closest named color: Teal Green (#0A9396). oklch(60.4% 0.102 201.6), rgb(4, 147, 155).
Aa
Black text reads best on this color (5.65:1).
About this color
#04939B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.102 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.008 away. Black text reads best on it, at 5.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 5.65:1 |
| White text | 3.71:1 |
Values
| HEX | #04939B |
| RGB | rgb(4, 147, 155) |
| HSL | hsl(183, 95%, 31%) |
| OKLCH | oklch(60.4% 0.102 201.6) |
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 #04939B | 3.71:1 | AA large text | Lc -69.6 | Content text, not long reading |
| Black text on #04939B | 5.65:1 | AA | Lc 39.9 | Non-text elements, placeholder text |
| #04939B text on white | 3.71:1 | AA large text | Lc 64.1 | Content text, not long reading |
| #04939B text on black | 5.65:1 | AA | Lc -37.5 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#DFEDEE
oklch(93.6% 0.015 202)
-
Step 200
200
#C5DFE1
oklch(88.5% 0.028 202.3)
-
Step 300
300
#9BCBCE
oklch(80.9% 0.05 201)
-
Step 400
400
#5EB0B6
oklch(70.8% 0.081 201.7)
-
Step 500
500 (this color)
#04939B
oklch(60.4% 0.102 201.6)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#052C2F
oklch(26.9% 0.042 202.6)
#04939B 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) | #868C9C | 0.102 |
| Deuteranopia (no green cones) | #757F9B | 0.095 |
| Tritanopia (no blue cones) | #009995 | 0.023 |
| Achromatopsia (no color) | #848484 | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04939B
#04939B
oklch(60.4% 0.102 201.6)
- #B76766
#B76766
oklch(60.4% 0.103 21.3)
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 #04939B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.008
- Dark Cyan #008B8B ΔE 0.030
- Sea #3C9992 ΔE 0.034
- Teal Blue #01889F ΔE 0.036
- Blue Green #0F9B8E ΔE 0.036
- Dusty Teal #4C9085 ΔE 0.042
- Persian Green #2A9D8F ΔE 0.042
- Blue NCS #118AB2 ΔE 0.051
Use #04939B 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.