#00344B
Closest named color: Midnight Green (#073B4C). oklch(30.7% 0.065 234.6), rgb(0, 52, 75).
Aa
White text reads best on this color (13.18:1).
About this color
#00344B is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.065 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.025 away. White text reads best on it, at 13.18:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.59:1 |
| White text | 13.18:1 |
Values
| HEX | #00344B |
| RGB | rgb(0, 52, 75) |
| HSL | hsl(198, 100%, 15%) |
| OKLCH | oklch(30.7% 0.065 234.6) |
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 #00344B | 13.18:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #00344B | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #00344B text on white | 13.18:1 | AAA | Lc 99.1 | Preferred for body text |
| #00344B text on black | 1.59:1 | 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
#DCEDF7
oklch(93.6% 0.023 233.4)
-
Step 200
200
#BFDEF2
oklch(88.4% 0.043 236.3)
-
Step 300
300
#8FC9EB
oklch(80.8% 0.077 234.7)
-
Step 400
400
#43ACE1
oklch(70.6% 0.122 234.5)
-
Step 500
500
#0095CD
oklch(63.1% 0.132 234.2)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900
#004765
oklch(37.6% 0.08 234.9)
-
Step 950
950 (this color)
#00344B
oklch(30.7% 0.065 234.6)
#00344B 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) | #29344C | 0.040 |
| Deuteranopia (no green cones) | #1F2D4B | 0.033 |
| Tritanopia (no blue cones) | #003A3C | 0.039 |
| Achromatopsia (no color) | #303030 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00344B
#00344B
oklch(30.7% 0.065 234.6)
- #48250B
#48250B
oklch(30.6% 0.065 53.7)
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 #00344B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.025
- Prussian Blue #1D3557 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.037
- Gunmetal #293241 ΔE 0.041
- Marine #042E60 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.050
- Marine Blue #01386A ΔE 0.055
Use #00344B 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.