#003145
Closest named color: Midnight Green (#073B4C). oklch(29.4% 0.06 232.1), rgb(0, 49, 69).
Aa
White text reads best on this color (13.76:1).
About this color
#003145 is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.060 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.036 away. White text reads best on it, at 13.76:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.52:1 |
| White text | 13.76:1 |
Values
| HEX | #003145 |
| RGB | rgb(0, 49, 69) |
| HSL | hsl(197, 100%, 14%) |
| OKLCH | oklch(29.4% 0.06 232.1) |
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 #003145 | 13.76:1 | AAA | Lc -103.1 | Preferred for body text |
| Black text on #003145 | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #003145 text on white | 13.76:1 | AAA | Lc 100.0 | Preferred for body text |
| #003145 text on black | 1.52:1 | 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
#DDEDF5
oklch(93.7% 0.02 229)
-
Step 200
200
#C0DEEF
oklch(88.4% 0.04 232.7)
-
Step 300
300
#92C9E7
oklch(80.8% 0.071 232.6)
-
Step 400
400
#4AADDB
oklch(70.8% 0.113 231.7)
-
Step 500
500
#0096C9
oklch(63.2% 0.128 231.5)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950 (this color)
#003145
oklch(29.4% 0.06 232.1)
#003145 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) | #273046 | 0.039 |
| Deuteranopia (no green cones) | #1E2A45 | 0.033 |
| Tritanopia (no blue cones) | #003638 | 0.034 |
| Achromatopsia (no color) | #2D2D2D | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #003145
#003145
oklch(29.4% 0.06 232.1)
- #43230D
#43230D
oklch(29.4% 0.059 52.7)
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 #003145, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.036
- Oxford Blue #1B263B ΔE 0.041
- Gunmetal #293241 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.044
- Space Cadet #2B2D42 ΔE 0.046
- Dark Blue Grey #1F3B4D ΔE 0.047
- Dark #1B2431 ΔE 0.052
- Marine #042E60 ΔE 0.052
Use #003145 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.