#04749A
Closest named color: Sea Blue (#047495). oklch(52.4% 0.104 230.2), rgb(4, 116, 154).
Aa
White text reads best on this color (5.28:1).
About this color
#04749A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.104 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.008 away. White text reads best on it, at 5.28:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.96:1 |
| White text | 5.28:1 |
Values
| HEX | #04749A |
| RGB | rgb(4, 116, 154) |
| HSL | hsl(195, 95%, 31%) |
| OKLCH | oklch(52.4% 0.104 230.2) |
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 #04749A | 5.28:1 | AA | Lc -81.1 | Fine for body text |
| Black text on #04749A | 3.96:1 | AA large text | Lc 28.3 | Dividers and decoration only |
| #04749A text on white | 5.28:1 | AA | Lc 75.7 | Fine for body text |
| #04749A text on black | 3.96:1 | AA large text | Lc -26.0 | 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
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A3C7D9
oklch(80.9% 0.046 229.7)
-
Step 400
400
#6EAAC6
oklch(70.7% 0.074 229.2)
-
Step 500
500
#4394B8
oklch(63.1% 0.095 230)
-
Step 600
600 (this color)
#04749A
oklch(52.4% 0.104 230.2)
-
Step 700
700
#066A8D
oklch(49.2% 0.097 230.3)
-
Step 800
800
#0E5672
oklch(42.6% 0.08 230.5)
-
Step 900
900
#17475C
oklch(37.6% 0.062 230.6)
-
Step 950
950
#0F2A36
oklch(27% 0.04 229.8)
#04749A 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) | #60729C | 0.070 |
| Deuteranopia (no green cones) | #4E6699 | 0.059 |
| Tritanopia (no blue cones) | #007E81 | 0.058 |
| Achromatopsia (no color) | #6C6C6C | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04749A
#04749A
oklch(52.4% 0.104 230.2)
- #99562E
#99562E
oklch(52.4% 0.104 49.7)
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 #04749A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.008
- Ocean Blue #03719C ΔE 0.010
- Ocean #017B92 ΔE 0.028
- Muted Blue #3B719F ΔE 0.031
- Nice Blue #107AB0 ΔE 0.037
- Peacock Blue #016795 ΔE 0.039
- Flat Blue #3C73A8 ΔE 0.039
- Dull Blue #49759C ΔE 0.043
Use #04749A 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.