#045E6C
Closest named color: Petrol (#005F6A). oklch(44.3% 0.076 212.5), rgb(4, 94, 108).
Aa
White text reads best on this color (7.43:1).
About this color
#045E6C is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 44%, its chroma 0.076 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.005 away. White text reads best on it, at 7.43:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.82:1 |
| White text | 7.43:1 |
Values
| HEX | #045E6C |
| RGB | rgb(4, 94, 108) |
| HSL | hsl(188, 93%, 22%) |
| OKLCH | oklch(44.3% 0.076 212.5) |
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 #045E6C | 7.43:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #045E6C | 2.82:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #045E6C text on white | 7.43:1 | AAA | Lc 85.4 | Fine for body text |
| #045E6C text on black | 2.82:1 | Fails | Lc -16.6 | Dividers and decoration only |
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 800.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE3
oklch(88.6% 0.024 212.9)
-
Step 300
300
#A0C9D2
oklch(80.9% 0.045 212.6)
-
Step 400
400
#69ADBB
oklch(70.8% 0.072 212.2)
-
Step 500
500
#3998AA
oklch(63.2% 0.091 212.5)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800 (this color)
#045E6C
oklch(44.3% 0.076 212.5)
-
Step 900
900
#0F4A54
oklch(37.8% 0.059 211.7)
-
Step 950
950
#0C2B31
oklch(26.9% 0.038 212.5)
#045E6C 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) | #535A6D | 0.069 |
| Deuteranopia (no green cones) | #47516C | 0.064 |
| Tritanopia (no blue cones) | #006462 | 0.029 |
| Achromatopsia (no color) | #555555 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045E6C
#045E6C
oklch(44.3% 0.076 212.5)
- #784338
#784338
oklch(44.4% 0.076 32.7)
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 #045E6C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.005
- Dark Aqua #05696B ΔE 0.037
- Deep Teal #00555A ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.058
- Light Navy Blue #2E5A88 ΔE 0.059
Use #045E6C 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.