#030F23
Closest named color: Rich Navy (#001219). oklch(17% 0.046 257.3), rgb(3, 15, 35).
Aa
White text reads best on this color (19.15:1).
About this color
#030F23 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.046 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.027 away. White text reads best on it, at 19.15:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.15:1 |
Values
| HEX | #030F23 |
| RGB | rgb(3, 15, 35) |
| HSL | hsl(218, 84%, 7%) |
| OKLCH | oklch(17% 0.046 257.3) |
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 #030F23 | 19.15:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #030F23 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #030F23 text on white | 19.15:1 | AAA | Lc 105.4 | Preferred for body text |
| #030F23 text on black | 1.09:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200
#CDDAEE
oklch(88.5% 0.031 258.9)
-
Step 300
300
#ABC2E4
oklch(80.8% 0.054 258)
-
Step 400
400
#7EA3D7
oklch(70.8% 0.087 256.9)
-
Step 500
500
#5C8BCC
oklch(63.1% 0.111 256.7)
-
Step 600
600
#4273B9
oklch(55.5% 0.122 257.5)
-
Step 700
700
#3461A0
oklch(49.2% 0.113 257.2)
-
Step 800
800
#2B4F81
oklch(42.6% 0.093 257)
-
Step 900
900
#274268
oklch(37.7% 0.073 257.1)
-
Step 950
950 (this color)
#030F23
oklch(17% 0.046 257.3)
#030F23 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) | #061124 | 0.010 |
| Deuteranopia (no green cones) | #020E23 | 0.005 |
| Tritanopia (no blue cones) | #001417 | 0.036 |
| Achromatopsia (no color) | #0F0F0F | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #030F23
#030F23
oklch(17% 0.046 257.3)
- #180D00
#180D00
oklch(17% 0.036 77)
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 #030F23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.027
- Almost Black #070D0D ΔE 0.046
- Rich Black #0D1B2A ΔE 0.049
- Dark Navy #000435 ΔE 0.051
- Dark Navy Blue #00022E ΔE 0.052
- Midnight #03012D ΔE 0.052
- Very Dark Blue #000133 ΔE 0.057
- Navy Blue #001146 ΔE 0.069
Use #030F23 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.