#04425B
Closest named color: Dark Blue Grey (#1F3B4D). oklch(35.7% 0.071 232.5), rgb(4, 66, 91).
Aa
White text reads best on this color (10.84:1).
About this color
#04425B is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.071 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.031 away. White text reads best on it, at 10.84:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.93:1 |
| White text | 10.84:1 |
Values
| HEX | #04425B |
| RGB | rgb(4, 66, 91) |
| HSL | hsl(197, 92%, 19%) |
| OKLCH | oklch(35.7% 0.071 232.5) |
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 #04425B | 10.84:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #04425B | 1.93:1 | Fails | Lc 9.2 | Not readable |
| #04425B text on white | 10.84:1 | AAA | Lc 94.7 | Preferred for body text |
| #04425B text on black | 1.93:1 | Fails | Lc -7.9 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEA
oklch(88.5% 0.03 233.6)
-
Step 300
300
#9FC7DE
oklch(80.9% 0.054 233.5)
-
Step 400
400
#67AACD
oklch(70.7% 0.085 232.5)
-
Step 500
500
#3594C0
oklch(63% 0.109 232.5)
-
Step 600
600
#007EAB
oklch(55.7% 0.114 232.4)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900 (this color)
#04425B
oklch(35.7% 0.071 232.5)
-
Step 950
950
#0B2A39
oklch(27% 0.045 233.1)
#04425B 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) | #35415C | 0.045 |
| Deuteranopia (no green cones) | #2A3A5B | 0.037 |
| Tritanopia (no blue cones) | #00494B | 0.042 |
| Achromatopsia (no color) | #3D3D3D | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04425B
#04425B
oklch(35.7% 0.071 232.5)
- #593015
#593015
oklch(35.6% 0.072 51.7)
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 #04425B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.031
- Midnight Green #073B4C ΔE 0.031
- Dark Grey Blue #29465B ΔE 0.033
- Charcoal #264653 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.042
- Marine Blue #01386A ΔE 0.046
- Dark Teal #014D4E ΔE 0.049
- Twilight Blue #0A437A ΔE 0.054
Use #04425B 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.