#051024
Closest named color: Rich Navy (#001219). oklch(17.5% 0.045 260), rgb(5, 16, 36).
Aa
White text reads best on this color (18.98:1).
About this color
#051024 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.045 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.028 away. White text reads best on it, at 18.98:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 18.98:1 |
Values
| HEX | #051024 |
| RGB | rgb(5, 16, 36) |
| HSL | hsl(219, 76%, 8%) |
| OKLCH | oklch(17.5% 0.045 260) |
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 #051024 | 18.98:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #051024 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #051024 text on white | 18.98:1 | AAA | Lc 105.3 | Preferred for body text |
| #051024 text on black | 1.10:1 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#ADC2E4
oklch(81% 0.053 260)
-
Step 400
400
#81A2D6
oklch(70.7% 0.085 259.3)
-
Step 500
500
#628ACB
oklch(63.2% 0.108 259.8)
-
Step 600
600
#4972B8
oklch(55.5% 0.119 260.5)
-
Step 700
700
#3A609F
oklch(49.2% 0.11 260)
-
Step 800
800
#304E80
oklch(42.6% 0.091 260.1)
-
Step 900
900
#2B4167
oklch(37.6% 0.071 260.8)
-
Step 950
950 (this color)
#051024
oklch(17.5% 0.045 260)
#051024 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) | #071225 | 0.009 |
| Deuteranopia (no green cones) | #030F24 | 0.006 |
| Tritanopia (no blue cones) | #001518 | 0.037 |
| Achromatopsia (no color) | #101010 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051024
#051024
oklch(17.5% 0.045 260)
- #190E00
#190E00
oklch(17.5% 0.036 78)
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 #051024, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.028
- Rich Black #0D1B2A ΔE 0.044
- Almost Black #070D0D ΔE 0.048
- Dark Navy #000435 ΔE 0.053
- Dark Navy Blue #00022E ΔE 0.055
- Midnight #03012D ΔE 0.056
- Very Dark Blue #000133 ΔE 0.060
- Navy Blue #001146 ΔE 0.067
Use #051024 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.