#030C21
Closest named color: Rich Navy (#001219). oklch(15.9% 0.047 261.3), rgb(3, 12, 33).
Aa
White text reads best on this color (19.47:1).
About this color
#030C21 is a very dark, muted blue. In OKLCH its lightness is 16%, its chroma 0.047 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.032 away. White text reads best on it, at 19.47:1.
| Hue family | Blues |
| Lightness | very dark (16%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.07:1 |
| White text | 19.47:1 |
Values
| HEX | #030C21 |
| RGB | rgb(3, 12, 33) |
| HSL | hsl(222, 83%, 7%) |
| OKLCH | oklch(15.9% 0.047 261.3) |
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 #030C21 | 19.47:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #030C21 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #030C21 text on white | 19.47:1 | AAA | Lc 105.6 | Preferred for body text |
| #030C21 text on black | 1.07:1 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEE
oklch(88.5% 0.03 260.7)
-
Step 300
300
#ADC2E6
oklch(81% 0.056 261.2)
-
Step 400
400
#81A1D9
oklch(70.7% 0.09 261.3)
-
Step 500
500
#6189CF
oklch(63.1% 0.115 261)
-
Step 600
600
#4872BC
oklch(55.7% 0.125 261)
-
Step 700
700
#3A5FA2
oklch(49.2% 0.116 261.3)
-
Step 800
800
#304E83
oklch(42.8% 0.095 261)
-
Step 900
900
#2A4169
oklch(37.7% 0.075 260.9)
-
Step 950
950 (this color)
#030C21
oklch(15.9% 0.047 261.3)
#030C21 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) | #030E22 | 0.007 |
| Deuteranopia (no green cones) | #000B21 | 0.009 |
| Tritanopia (no blue cones) | #001114 | 0.038 |
| Achromatopsia (no color) | #0D0D0D | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #030C21
#030C21
oklch(15.9% 0.047 261.3)
- #140B00
#140B00
oklch(15.8% 0.033 80.4)
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 #030C21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.032
- Almost Black #070D0D ΔE 0.045
- Midnight #03012D ΔE 0.045
- Dark Navy Blue #00022E ΔE 0.046
- Dark Navy #000435 ΔE 0.048
- Very Dark Blue #000133 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.060
- Navy Blue #001146 ΔE 0.075
Use #030C21 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.