#417A9D
Closest named color: Cerulean (#457B9D). oklch(55.6% 0.081 237.6), rgb(65, 122, 157).
Aa
White text reads best on this color (4.67:1).
About this color
#417A9D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.081 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.005 away. White text reads best on it, at 4.67:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.49:1 |
| White text | 4.67:1 |
Values
| HEX | #417A9D |
| RGB | rgb(65, 122, 157) |
| HSL | hsl(203, 41%, 44%) |
| OKLCH | oklch(55.6% 0.081 237.6) |
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 #417A9D | 4.67:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #417A9D | 4.49:1 | AA large text | Lc 31.8 | Non-text elements, placeholder text |
| #417A9D text on white | 4.67:1 | AA | Lc 72.3 | Content text, not long reading |
| #417A9D text on black | 4.49:1 | AA large text | Lc -29.4 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CDDBE5
oklch(88.4% 0.02 238.7)
-
Step 300
300
#ABC5D6
oklch(80.9% 0.037 236.6)
-
Step 400
400
#7EA7C1
oklch(70.8% 0.059 236.5)
-
Step 500
500
#5D90B1
oklch(63% 0.074 237.9)
-
Step 600
600 (this color)
#417A9D
oklch(55.6% 0.081 237.6)
-
Step 700
700
#336786
oklch(49.2% 0.075 237.1)
-
Step 800
800
#2B546D
oklch(42.7% 0.062 237.4)
-
Step 900
900
#274558
oklch(37.6% 0.049 237.8)
-
Step 950
950
#172934
oklch(27.1% 0.031 236.4)
#417A9D 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) | #6A799F | 0.048 |
| Deuteranopia (no green cones) | #5D709C | 0.039 |
| Tritanopia (no blue cones) | #008386 | 0.061 |
| Achromatopsia (no color) | #747474 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #417A9D
#417A9D
oklch(55.6% 0.081 237.6)
- #976742
#976742
oklch(55.6% 0.081 57.8)
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 #417A9D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.005
- Dull Blue #49759C ΔE 0.015
- Stormy Blue #507B9C ΔE 0.016
- Metallic Blue #4F738E ΔE 0.028
- Muted Blue #3B719F ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.031
- Nice Blue #107AB0 ΔE 0.039
- Ocean #017B92 ΔE 0.039
Use #417A9D 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.