#00364B
Closest named color: Midnight Green (#073B4C). oklch(31.2% 0.063 231.3), rgb(0, 54, 75).
Aa
White text reads best on this color (12.88:1).
About this color
#00364B is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.063 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.018 away. White text reads best on it, at 12.88:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.62:1 |
| White text | 12.88:1 |
Values
| HEX | #00364B |
| RGB | rgb(0, 54, 75) |
| HSL | hsl(197, 100%, 15%) |
| OKLCH | oklch(31.2% 0.063 231.3) |
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 #00364B | 12.88:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #00364B | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #00364B text on white | 12.88:1 | AAA | Lc 98.7 | Preferred for body text |
| #00364B text on black | 1.62:1 | 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
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DCEDF6
oklch(93.6% 0.022 230.5)
-
Step 200
200
#BFDFF0
oklch(88.6% 0.041 231)
-
Step 300
300
#8ECAE9
oklch(80.9% 0.076 231.4)
-
Step 400
400
#41ADDE
oklch(70.7% 0.12 231.8)
-
Step 500
500
#0096C8
oklch(63.1% 0.127 231)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005776
oklch(42.8% 0.087 231.2)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950 (this color)
#00364B
oklch(31.2% 0.063 231.3)
#00364B 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) | #2B354C | 0.041 |
| Deuteranopia (no green cones) | #222F4B | 0.035 |
| Tritanopia (no blue cones) | #003C3D | 0.038 |
| Achromatopsia (no color) | #323232 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00364B
#00364B
oklch(31.2% 0.063 231.3)
- #4A2610
#4A2610
oklch(31.2% 0.064 50)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #00364B
These curated palettes and gradients contain exactly #00364B. Open one to see the full color scheme around it.
Palettes
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.018
- Dark Blue Grey #1F3B4D ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.033
- Gunmetal #293241 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.048
- Marine #042E60 ΔE 0.050
- Marine Blue #01386A ΔE 0.055
- Oxford Blue #1B263B ΔE 0.056
Use #00364B 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.