#05142A
Closest named color: Rich Black (#0D1B2A). oklch(19.2% 0.05 257.1), rgb(5, 20, 42).
Aa
White text reads best on this color (18.42:1).
About this color
#05142A is a very dark, muted blue. In OKLCH its lightness is 19%, its chroma 0.050 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.030 away. White text reads best on it, at 18.42:1.
| Hue family | Blues |
| Lightness | very dark (19%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.13:1 |
| White text | 18.42:1 |
Values
| HEX | #05142A |
| RGB | rgb(5, 20, 42) |
| HSL | hsl(216, 79%, 9%) |
| OKLCH | oklch(19.2% 0.05 257.1) |
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 #05142A | 18.42:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #05142A | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #05142A text on white | 18.42:1 | AAA | Lc 104.9 | Preferred for body text |
| #05142A text on black | 1.13:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EBF5
oklch(93.7% 0.016 253.9)
-
Step 200
200
#CCDAEF
oklch(88.4% 0.033 258.4)
-
Step 300
300
#A9C3E7
oklch(81% 0.058 256.6)
-
Step 400
400
#7BA3DB
oklch(70.8% 0.094 256.9)
-
Step 500
500
#588BD1
oklch(63.2% 0.12 256.6)
-
Step 600
600
#3D73BE
oklch(55.5% 0.131 257.1)
-
Step 700
700
#2F60A4
oklch(49% 0.122 257.2)
-
Step 800
800
#284F85
oklch(42.7% 0.1 257)
-
Step 900
900
#25426B
oklch(37.8% 0.079 257.2)
-
Step 950
950 (this color)
#05142A
oklch(19.2% 0.05 257.1)
#05142A 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) | #09162B | 0.010 |
| Deuteranopia (no green cones) | #04122A | 0.008 |
| Tritanopia (no blue cones) | #00191C | 0.039 |
| Achromatopsia (no color) | #141414 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05142A
#05142A
oklch(19.2% 0.05 257.1)
- #1E1100
#1E1100
oklch(19.1% 0.04 76.2)
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 #05142A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.030
- Rich Navy #001219 ΔE 0.038
- Navy Blue #001146 ΔE 0.056
- Dark Navy #000435 ΔE 0.057
- Almost Black #070D0D ΔE 0.060
- Dark Navy Blue #00022E ΔE 0.064
- Midnight #03012D ΔE 0.065
- Very Dark Blue #000133 ΔE 0.066
Use #05142A 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.