#045D8F
Closest named color: Light Navy Blue (#2E5A88). oklch(45.9% 0.109 242.7), rgb(4, 93, 143).
Aa
White text reads best on this color (7.07:1).
About this color
#045D8F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.109 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.024 away. White text reads best on it, at 7.07:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.96:1 |
| White text | 7.07:1 |
Values
| HEX | #045D8F |
| RGB | rgb(4, 93, 143) |
| HSL | hsl(202, 95%, 29%) |
| OKLCH | oklch(45.9% 0.109 242.7) |
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 #045D8F | 7.07:1 | AAA | Lc -88.9 | Fine for body text |
| Black text on #045D8F | 2.96:1 | Fails | Lc 20.1 | Dividers and decoration only |
| #045D8F text on white | 7.07:1 | AAA | Lc 84.0 | Fine for body text |
| #045D8F text on black | 2.96:1 | Fails | Lc -18.0 | 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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#C9DCEB
oklch(88.5% 0.029 241.6)
-
Step 300
300
#A4C5E0
oklch(80.8% 0.052 243.1)
-
Step 400
400
#71A7D1
oklch(70.7% 0.084 242.8)
-
Step 500
500
#4890C5
oklch(63% 0.108 243)
-
Step 600
600
#257AB2
oklch(55.7% 0.117 242.6)
-
Step 700
700 (this color)
#045D8F
oklch(45.9% 0.109 242.7)
-
Step 800
800
#16547C
oklch(42.8% 0.09 242.2)
-
Step 900
900
#1B4564
oklch(37.6% 0.071 243.7)
-
Step 950
950
#11293A
oklch(27% 0.044 241.7)
#045D8F 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) | #455F91 | 0.049 |
| Deuteranopia (no green cones) | #32538E | 0.036 |
| Tritanopia (no blue cones) | #00696F | 0.073 |
| Achromatopsia (no color) | #585858 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045D8F
#045D8F
oklch(45.9% 0.109 242.7)
- #804800
#804800
oklch(45.9% 0.105 62.5)
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 #045D8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.024
- Peacock Blue #016795 ΔE 0.030
- Dusk Blue #26538D ΔE 0.031
- Deep Sea Blue #015482 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.037
- Light Navy #155084 ΔE 0.039
- Denim #3B638C ΔE 0.043
- Dusky Blue #475F94 ΔE 0.053
Use #045D8F 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.