#004A7E
Closest named color: Twilight Blue (#0A437A). oklch(40% 0.108 248.1), rgb(0, 74, 126).
Aa
White text reads best on this color (9.20:1).
About this color
#004A7E is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.108 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.021 away. White text reads best on it, at 9.20:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.28:1 |
| White text | 9.20:1 |
Values
| HEX | #004A7E |
| RGB | rgb(0, 74, 126) |
| HSL | hsl(205, 100%, 25%) |
| OKLCH | oklch(40% 0.108 248.1) |
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 #004A7E | 9.20:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #004A7E | 2.28:1 | Fails | Lc 13.3 | Not readable |
| #004A7E text on white | 9.20:1 | AAA | Lc 90.6 | Preferred for body text |
| #004A7E text on black | 2.28:1 | Fails | Lc -11.7 | 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 900.
-
Step 50
50
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DEECF9
oklch(93.6% 0.023 246)
-
Step 200
200
#C3DCF6
oklch(88.4% 0.045 249.4)
-
Step 300
300
#97C6F3
oklch(80.9% 0.081 247.8)
-
Step 400
400
#59A6ED
oklch(70.6% 0.13 248.4)
-
Step 500
500
#128EE7
oklch(63.1% 0.165 248)
-
Step 600
600
#0077C6
oklch(55.6% 0.15 248.2)
-
Step 700
700
#0064A7
oklch(49.1% 0.132 247.9)
-
Step 800
800
#00528A
oklch(42.8% 0.115 247.8)
-
Step 900
900 (this color)
#004A7E
oklch(40% 0.108 248.1)
-
Step 950
950
#032846
oklch(27% 0.069 248.1)
#004A7E 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) | #304D80 | 0.036 |
| Deuteranopia (no green cones) | #1C437D | 0.023 |
| Tritanopia (no blue cones) | #00575E | 0.077 |
| Achromatopsia (no color) | #484848 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004A7E
#004A7E
oklch(40% 0.108 248.1)
- #663D00
#663D00
oklch(40% 0.088 68.1)
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 #004A7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.021
- Light Navy #155084 ΔE 0.023
- Deep Sea Blue #015482 ΔE 0.031
- Cobalt #1E488F ΔE 0.035
- Dusk Blue #26538D ΔE 0.044
- Marine Blue #01386A ΔE 0.061
- Dark Grey Blue #29465B ΔE 0.061
- Light Navy Blue #2E5A88 ΔE 0.062
Use #004A7E 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.