#1F5FA6
Closest named color: Mid Blue (#276AB3). oklch(48.4% 0.131 254.1), rgb(31, 95, 166).
Aa
White text reads best on this color (6.46:1).
About this color
#1F5FA6 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.131 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.036 away. White text reads best on it, at 6.46:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.24:1 |
| White text | 6.46:1 |
Values
| HEX | #1F5FA6 |
| RGB | rgb(31, 95, 166) |
| HSL | hsl(212, 69%, 39%) |
| OKLCH | oklch(48.4% 0.131 254.1) |
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 #1F5FA6 | 6.46:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #1F5FA6 | 3.24:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #1F5FA6 text on white | 6.46:1 | AA | Lc 81.7 | Fine for body text |
| #1F5FA6 text on black | 3.24:1 | AA large text | Lc -20.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF1
oklch(88.6% 0.035 254.9)
-
Step 300
300
#A5C3E9
oklch(80.8% 0.063 254.5)
-
Step 400
400
#74A4DF
oklch(70.8% 0.101 254.1)
-
Step 500
500
#4E8CD6
oklch(63.2% 0.129 254.1)
-
Step 600
600
#2F74C3
oklch(55.6% 0.141 254.1)
-
Step 700
700 (this color)
#1F5FA6
oklch(48.4% 0.131 254.1)
-
Step 800
800
#1E5088
oklch(42.8% 0.107 253.7)
-
Step 900
900
#1E436D
oklch(37.8% 0.084 253.4)
-
Step 950
950
#132740
oklch(27% 0.054 254.9)
#1F5FA6 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) | #3B65A9 | 0.031 |
| Deuteranopia (no green cones) | #2359A5 | 0.016 |
| Tritanopia (no blue cones) | #00707A | 0.099 |
| Achromatopsia (no color) | #5E5E5E | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F5FA6
#1F5FA6
oklch(48.4% 0.131 254.1)
- #805400
#805400
oklch(48.3% 0.102 74.1)
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 #1F5FA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.037
- Peacock Blue #016795 ΔE 0.041
- Dusky Blue #475F94 ΔE 0.046
- Light Navy Blue #2E5A88 ΔE 0.048
- Dusk Blue #26538D ΔE 0.048
- French Blue #436BAD ΔE 0.051
- Denim #3B638C ΔE 0.051
Use #1F5FA6 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.