#04394D
Closest named color: Midnight Green (#073B4C). oklch(32.3% 0.062 230), rgb(4, 57, 77).
Aa
White text reads best on this color (12.37:1).
About this color
#04394D is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.062 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.008 away. White text reads best on it, at 12.37:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.69:1 |
| White text | 12.37:1 |
Values
| HEX | #04394D |
| RGB | rgb(4, 57, 77) |
| HSL | hsl(196, 90%, 16%) |
| OKLCH | oklch(32.3% 0.062 230) |
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 #04394D | 12.37:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #04394D | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #04394D text on white | 12.37:1 | AAA | Lc 97.8 | Preferred for body text |
| #04394D text on black | 1.69:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DCEDF5
oklch(93.6% 0.021 227.5)
-
Step 200
200
#BFDFEF
oklch(88.5% 0.04 229.4)
-
Step 300
300
#8FCAE7
oklch(80.9% 0.073 230)
-
Step 400
400
#42AEDB
oklch(70.8% 0.117 229.5)
-
Step 500
500
#0096C6
oklch(63% 0.126 229.9)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#004862
oklch(37.7% 0.076 230.8)
-
Step 950
950 (this color)
#04394D
oklch(32.3% 0.062 230)
#04394D 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) | #2F384E | 0.043 |
| Deuteranopia (no green cones) | #25324D | 0.035 |
| Tritanopia (no blue cones) | #003F40 | 0.036 |
| Achromatopsia (no color) | #343434 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04394D
#04394D
oklch(32.3% 0.062 230)
- #4C2914
#4C2914
oklch(32.2% 0.062 50.1)
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 #04394D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.008
- Dark Blue Grey #1F3B4D ΔE 0.023
- Prussian Blue #1D3557 ΔE 0.031
- Gunmetal #293241 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.051
- Marine Blue #01386A ΔE 0.053
- Onyx #343A40 ΔE 0.054
- Marine #042E60 ΔE 0.054
Use #04394D 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.