#417D9B
Closest named color: Cerulean (#457B9D). oklch(56.2% 0.078 232.2), rgb(65, 125, 155).
Aa
Black text reads best on this color (4.63:1).
About this color
#417D9B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.078 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.008 away. Black text reads best on it, at 4.63:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.63:1 |
| White text | 4.53:1 |
Values
| HEX | #417D9B |
| RGB | rgb(65, 125, 155) |
| HSL | hsl(200, 41%, 43%) |
| OKLCH | oklch(56.2% 0.078 232.2) |
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 #417D9B | 4.53:1 | AA | Lc -76.8 | Fine for body text |
| Black text on #417D9B | 4.63:1 | AA | Lc 32.8 | Non-text elements, placeholder text |
| #417D9B text on white | 4.53:1 | AA | Lc 71.3 | Content text, not long reading |
| #417D9B text on black | 4.63:1 | AA | Lc -30.3 | Non-text elements, placeholder text |
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
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#ABC5D4
oklch(80.9% 0.035 233.2)
-
Step 400
400
#7EA7BE
oklch(70.7% 0.056 233.1)
-
Step 500
500
#5B91AE
oklch(63% 0.072 233)
-
Step 600
600 (this color)
#417D9B
oklch(56.2% 0.078 232.2)
-
Step 700
700
#316883
oklch(49.2% 0.072 232.2)
-
Step 800
800
#29556A
oklch(42.8% 0.06 231.1)
-
Step 900
900
#264656
oklch(37.7% 0.047 231.6)
-
Step 950
950
#172932
oklch(27% 0.029 231)
#417D9B 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) | #6E7C9C | 0.052 |
| Deuteranopia (no green cones) | #62729B | 0.046 |
| Tritanopia (no blue cones) | #008587 | 0.055 |
| Achromatopsia (no color) | #767676 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #417D9B
#417D9B
oklch(56.2% 0.078 232.2)
- #996849
#996849
oklch(56.2% 0.077 52.9)
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 #417D9B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.008
- Stormy Blue #507B9C ΔE 0.016
- Dull Blue #49759C ΔE 0.024
- Metallic Blue #4F738E ΔE 0.031
- Ocean #017B92 ΔE 0.038
- Teal Blue #01889F ΔE 0.039
- Muted Blue #3B719F ΔE 0.039
- Steel Blue #4682B4 ΔE 0.040
Use #417D9B 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.