#04789C
Closest named color: Sea Blue (#047495). oklch(53.5% 0.103 227.9), rgb(4, 120, 156).
Aa
White text reads best on this color (5.03:1).
About this color
#04789C is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.103 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.015 away. White text reads best on it, at 5.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #04789C |
| RGB | rgb(4, 120, 156) |
| HSL | hsl(194, 95%, 31%) |
| OKLCH | oklch(53.5% 0.103 227.9) |
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 #04789C | 5.03:1 | AA | Lc -79.6 | Fine for body text |
| Black text on #04789C | 4.17:1 | AA large text | Lc 29.9 | Dividers and decoration only |
| #04789C text on white | 5.03:1 | AA | Lc 74.2 | Content text, not long reading |
| #04789C text on black | 4.17:1 | AA large text | Lc -27.5 | 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 600.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE7
oklch(88.5% 0.026 227.9)
-
Step 300
300
#A2C7D9
oklch(80.9% 0.047 229)
-
Step 400
400
#6DAAC5
oklch(70.7% 0.074 227.8)
-
Step 500
500
#4195B7
oklch(63.2% 0.095 227.8)
-
Step 600
600 (this color)
#04789C
oklch(53.5% 0.103 227.9)
-
Step 700
700
#006A8B
oklch(49% 0.096 228.3)
-
Step 800
800
#0A5771
oklch(42.7% 0.08 227.8)
-
Step 900
900
#15485B
oklch(37.7% 0.062 227)
-
Step 950
950
#0F2A35
oklch(27% 0.038 227.5)
#04789C 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) | #65769E | 0.074 |
| Deuteranopia (no green cones) | #53699C | 0.064 |
| Tritanopia (no blue cones) | #008284 | 0.056 |
| Achromatopsia (no color) | #6F6F6F | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04789C
#04789C
oklch(53.5% 0.103 227.9)
- #9D5934
#9D5934
oklch(53.5% 0.103 48)
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 #04789C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.015
- Ocean #017B92 ΔE 0.021
- Ocean Blue #03719C ΔE 0.021
- Nice Blue #107AB0 ΔE 0.032
- Muted Blue #3B719F ΔE 0.033
- Cerulean #457B9D ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.039
- Dull Blue #49759C ΔE 0.040
Use #04789C 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.