#047A9B
Closest named color: Ocean (#017B92). oklch(54% 0.102 225.4), rgb(4, 122, 155).
Aa
White text reads best on this color (4.92:1).
About this color
#047A9B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.102 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.016 away. White text reads best on it, at 4.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #047A9B |
| RGB | rgb(4, 122, 155) |
| HSL | hsl(193, 95%, 31%) |
| OKLCH | oklch(54% 0.102 225.4) |
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 #047A9B | 4.92:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #047A9B | 4.26:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #047A9B text on white | 4.92:1 | AA | Lc 73.6 | Content text, not long reading |
| #047A9B text on black | 4.26:1 | AA large text | Lc -28.1 | 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
#C8DDE6
oklch(88.5% 0.026 225.3)
-
Step 300
300
#A2C7D7
oklch(80.8% 0.045 226)
-
Step 400
400
#6DABC3
oklch(70.8% 0.073 224.6)
-
Step 500
500
#4095B4
oklch(63.1% 0.093 225.3)
-
Step 600
600 (this color)
#047A9B
oklch(54% 0.102 225.4)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#08576F
oklch(42.6% 0.078 225.5)
-
Step 900
900
#15485A
oklch(37.7% 0.061 225.6)
-
Step 950
950
#0E2A35
oklch(26.9% 0.039 226.8)
#047A9B 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) | #68779D | 0.077 |
| Deuteranopia (no green cones) | #566B9B | 0.066 |
| Tritanopia (no blue cones) | #008485 | 0.053 |
| Achromatopsia (no color) | #707070 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #047A9B
#047A9B
oklch(54% 0.102 225.4)
- #9E5A39
#9E5A39
oklch(53.9% 0.101 45.8)
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 #047A9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.016
- Sea Blue #047495 ΔE 0.019
- Ocean Blue #03719C ΔE 0.028
- Nice Blue #107AB0 ΔE 0.034
- Cerulean #457B9D ΔE 0.037
- Muted Blue #3B719F ΔE 0.037
- Dull Blue #49759C ΔE 0.041
- Teal Blue #01889F ΔE 0.042
Use #047A9B 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.