#00445F
Closest named color: Dark Grey Blue (#29465B). oklch(36.4% 0.075 233.1), rgb(0, 68, 95).
Aa
White text reads best on this color (10.54:1).
About this color
#00445F is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.075 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 10.54:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.99:1 |
| White text | 10.54:1 |
Values
| HEX | #00445F |
| RGB | rgb(0, 68, 95) |
| HSL | hsl(197, 100%, 19%) |
| OKLCH | oklch(36.4% 0.075 233.1) |
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 #00445F | 10.54:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #00445F | 1.99:1 | Fails | Lc 10.0 | Not readable |
| #00445F text on white | 10.54:1 | AAA | Lc 94.0 | Preferred for body text |
| #00445F text on black | 1.99:1 | Fails | Lc -8.6 | 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 900.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEB
oklch(88.5% 0.031 234.5)
-
Step 300
300
#9DC8E0
oklch(81% 0.057 232.8)
-
Step 400
400
#63AAD0
oklch(70.6% 0.091 233.5)
-
Step 500
500
#2D94C4
oklch(63% 0.116 233.6)
-
Step 600
600
#007DAB
oklch(55.5% 0.115 233.2)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900 (this color)
#00445F
oklch(36.4% 0.075 233.1)
-
Step 950
950
#092A3A
oklch(27% 0.048 233.8)
#00445F 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) | #364360 | 0.047 |
| Deuteranopia (no green cones) | #2B3B5F | 0.041 |
| Tritanopia (no blue cones) | #004B4D | 0.045 |
| Achromatopsia (no color) | #3F3F3F | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00445F
#00445F
oklch(36.4% 0.075 233.1)
- #5C3113
#5C3113
oklch(36.2% 0.075 52.6)
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 #00445F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Charcoal #264653 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.038
- Midnight Green #073B4C ΔE 0.039
- Marine Blue #01386A ΔE 0.046
- Prussian Blue #1D3557 ΔE 0.048
- Dark Teal #014D4E ΔE 0.048
- Twilight Blue #0A437A ΔE 0.049
Use #00445F 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.