#04121E
Closest named color: Rich Navy (#001219). oklch(17.6% 0.033 244.5), rgb(4, 18, 30).
Aa
White text reads best on this color (18.91:1).
About this color
#04121E is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.033 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.014 away. White text reads best on it, at 18.91:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.91:1 |
Values
| HEX | #04121E |
| RGB | rgb(4, 18, 30) |
| HSL | hsl(208, 76%, 7%) |
| OKLCH | oklch(17.6% 0.033 244.5) |
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 #04121E | 18.91:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #04121E | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #04121E text on white | 18.91:1 | AAA | Lc 105.3 | Preferred for body text |
| #04121E text on black | 1.11:1 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CEDBE7
oklch(88.5% 0.022 245.9)
-
Step 300
300
#ACC4D8
oklch(80.9% 0.039 243.3)
-
Step 400
400
#80A5C5
oklch(70.6% 0.062 244.9)
-
Step 500
500
#5F8FB6
oklch(63.1% 0.079 244)
-
Step 600
600
#4478A2
oklch(55.5% 0.086 244.6)
-
Step 700
700
#36658B
oklch(49.1% 0.08 244.9)
-
Step 800
800
#2D5371
oklch(42.8% 0.066 244.1)
-
Step 900
900
#29455B
oklch(37.8% 0.051 243.4)
-
Step 950
950 (this color)
#04121E
oklch(17.6% 0.033 244.5)
#04121E 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) | #0D121F | 0.015 |
| Deuteranopia (no green cones) | #09101E | 0.011 |
| Tritanopia (no blue cones) | #001516 | 0.025 |
| Achromatopsia (no color) | #111111 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04121E
#04121E
oklch(17.6% 0.033 244.5)
- #1A0D02
#1A0D02
oklch(17.4% 0.033 65.5)
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 #04121E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.014
- Almost Black #070D0D ΔE 0.036
- Rich Black #0D1B2A ΔE 0.042
- Dark Navy #000435 ΔE 0.068
- Dark Navy Blue #00022E ΔE 0.068
- Midnight #03012D ΔE 0.069
- Very Dark Blue #000133 ΔE 0.074
- Navy Blue #001146 ΔE 0.080
Use #04121E 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.