#00153D
Closest named color: Navy Blue (#001146). oklch(20.9% 0.083 259.4), rgb(0, 21, 61).
Aa
White text reads best on this color (17.87:1).
About this color
#00153D is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.083 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.020 away. White text reads best on it, at 17.87:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.17:1 |
| White text | 17.87:1 |
Values
| HEX | #00153D |
| RGB | rgb(0, 21, 61) |
| HSL | hsl(219, 100%, 12%) |
| OKLCH | oklch(20.9% 0.083 259.4) |
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 #00153D | 17.87:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #00153D | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #00153D text on white | 17.87:1 | AAA | Lc 104.3 | Preferred for body text |
| #00153D text on black | 1.17:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFE
oklch(88.6% 0.054 258.7)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#64A0FF
oklch(70.8% 0.153 259.2)
-
Step 500
500
#3584FF
oklch(63.2% 0.199 259.3)
-
Step 600
600
#0369EF
oklch(55.6% 0.217 259.4)
-
Step 700
700
#0058CC
oklch(49.2% 0.194 259.3)
-
Step 800
800
#0147A8
oklch(42.6% 0.168 259.5)
-
Step 900
900
#0E3D85
oklch(37.6% 0.131 259.5)
-
Step 950
950 (this color)
#00153D
oklch(20.9% 0.083 259.4)
#00153D 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) | #001A3E | 0.016 |
| Deuteranopia (no green cones) | #00153C | 0.002 |
| Tritanopia (no blue cones) | #001F26 | 0.062 |
| Achromatopsia (no color) | #171717 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00153D
#00153D
oklch(20.9% 0.083 259.4)
- #231500
#231500
oklch(20.9% 0.044 77.5)
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 #00153D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.020
- Night Blue #040348 ΔE 0.044
- Rich Black #0D1B2A ΔE 0.048
- Dark Navy #000435 ΔE 0.052
- Very Dark Blue #000133 ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.067
- Dark Navy Blue #00022E ΔE 0.067
- Midnight #03012D ΔE 0.070
Use #00153D 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.