#45738E
Closest named color: Metallic Blue (#4F738E). oklch(53.4% 0.066 235.6), rgb(69, 115, 142).
Aa
White text reads best on this color (5.12:1).
About this color
#45738E is a medium-dark, muted blue. In OKLCH its lightness is 53%, its chroma 0.066 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.011 away. White text reads best on it, at 5.12:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.09:1 |
| White text | 5.12:1 |
Values
| HEX | #45738E |
| RGB | rgb(69, 115, 142) |
| HSL | hsl(202, 35%, 41%) |
| OKLCH | oklch(53.4% 0.066 235.6) |
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 #45738E | 5.12:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #45738E | 4.09:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #45738E text on white | 5.12:1 | AA | Lc 75.2 | Fine for body text |
| #45738E text on black | 4.09:1 | AA large text | Lc -26.5 | 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 600.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AFC4D1
oklch(80.9% 0.029 234.9)
-
Step 400
400
#85A6BB
oklch(70.8% 0.048 236.3)
-
Step 500
500
#6590A9
oklch(63.1% 0.06 234.5)
-
Step 600
600 (this color)
#45738E
oklch(53.4% 0.066 235.6)
-
Step 700
700
#3C667F
oklch(49% 0.062 236.1)
-
Step 800
800
#325367
oklch(42.6% 0.051 236.3)
-
Step 900
900
#2C4554
oklch(37.7% 0.04 235.6)
-
Step 950
950
#1A2831
oklch(26.8% 0.025 237.2)
#45738E 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) | #66728F | 0.041 |
| Deuteranopia (no green cones) | #5C6A8E | 0.036 |
| Tritanopia (no blue cones) | #1E7A7C | 0.051 |
| Achromatopsia (no color) | #6E6E6E | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45738E
#45738E
oklch(53.4% 0.066 235.6)
- #8B6347
#8B6347
oklch(53.4% 0.066 55.8)
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 #45738E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.011
- Dull Blue #49759C ΔE 0.023
- Cerulean #457B9D ΔE 0.029
- Muted Blue #3B719F ΔE 0.031
- Stormy Blue #507B9C ΔE 0.033
- Sea Blue #047495 ΔE 0.038
- Ocean #017B92 ΔE 0.040
- Flat Blue #3C73A8 ΔE 0.042
Use #45738E 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.