#00435E
Closest named color: Dark Grey Blue (#29465B). oklch(36% 0.075 233.4), rgb(0, 67, 94).
Aa
White text reads best on this color (10.68:1).
About this color
#00435E 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 0.033 away. White text reads best on it, at 10.68:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #00435E |
| RGB | rgb(0, 67, 94) |
| HSL | hsl(197, 100%, 18%) |
| OKLCH | oklch(36% 0.075 233.4) |
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 #00435E | 10.68:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #00435E | 1.96:1 | Fails | Lc 9.6 | Not readable |
| #00435E text on white | 10.68:1 | AAA | Lc 94.3 | Preferred for body text |
| #00435E text on black | 1.96:1 | Fails | Lc -8.3 | 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
#9DC7E0
oklch(80.8% 0.057 234.5)
-
Step 400
400
#64AAD0
oklch(70.7% 0.09 233.8)
-
Step 500
500
#2F94C4
oklch(63.1% 0.115 233.9)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
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)
#00435E
oklch(36% 0.075 233.4)
-
Step 950
950
#092A3A
oklch(27% 0.048 233.8)
#00435E 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) | #35425F | 0.046 |
| Deuteranopia (no green cones) | #2A3B5E | 0.038 |
| Tritanopia (no blue cones) | #004A4C | 0.045 |
| Achromatopsia (no color) | #3E3E3E | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00435E
#00435E
oklch(36% 0.075 233.4)
- #5B3112
#5B3112
oklch(36.1% 0.075 53.9)
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 #00435E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.033
- Charcoal #264653 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.036
- Midnight Green #073B4C ΔE 0.036
- Marine Blue #01386A ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.045
- Twilight Blue #0A437A ΔE 0.050
- Dark Teal #014D4E ΔE 0.050
Use #00435E 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.