#045F7F
Closest named color: Light Navy Blue (#2E5A88). oklch(45.5% 0.09 230.4), rgb(4, 95, 127).
Aa
White text reads best on this color (7.12:1).
About this color
#045F7F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.090 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.033 away. White text reads best on it, at 7.12:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 2.94:1 |
| White text | 7.12:1 |
Values
| HEX | #045F7F |
| RGB | rgb(4, 95, 127) |
| HSL | hsl(196, 94%, 26%) |
| OKLCH | oklch(45.5% 0.09 230.4) |
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 #045F7F | 7.12:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #045F7F | 2.94:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #045F7F text on white | 7.12:1 | AAA | Lc 84.2 | Fine for body text |
| #045F7F text on black | 2.94:1 | Fails | Lc -17.8 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C7DDE9
oklch(88.5% 0.029 231.5)
-
Step 300
300
#9FC8DC
oklch(81% 0.052 229.2)
-
Step 400
400
#67ABCB
oklch(70.8% 0.083 229.8)
-
Step 500
500
#3495BE
oklch(63.2% 0.107 230.3)
-
Step 600
600
#007EA8
oklch(55.6% 0.112 230.6)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800 (this color)
#045F7F
oklch(45.5% 0.09 230.4)
-
Step 900
900
#0B4860
oklch(37.8% 0.07 230.6)
-
Step 950
950
#0B2A38
oklch(27% 0.044 231.3)
#045F7F 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) | #4E5E81 | 0.060 |
| Deuteranopia (no green cones) | #40537F | 0.053 |
| Tritanopia (no blue cones) | #00686A | 0.051 |
| Achromatopsia (no color) | #585858 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #045F7F
#045F7F
oklch(45.5% 0.09 230.4)
- #7E4624
#7E4624
oklch(45.5% 0.09 50.1)
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 #045F7F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.033
- Petrol #005F6A ΔE 0.036
- Deep Sea Blue #015482 ΔE 0.036
- Peacock Blue #016795 ΔE 0.039
- YInMn Blue #415A77 ΔE 0.043
- Denim #3B638C ΔE 0.046
- Light Navy #155084 ΔE 0.048
- Dusk Blue #26538D ΔE 0.049
Use #045F7F 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.